Define Phase Change

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Melissa Solis 1H
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Define Phase Change

Postby Melissa Solis 1H » Sat Jan 23, 2021 11:13 pm

What does phase change mean specifically? Or is it just a solid changing into a liquid?

Juliet Carr 1F
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Re: Define Phase Change

Postby Juliet Carr 1F » Sat Jan 23, 2021 11:16 pm

I think a phase change is just a change in the state of matter.
For example:
-When you heat liquid water, it undergoes a phase change from liquid to gas
-When you cool liquid water, it undergoes a phase change from liquid to solid
-etc.

Aliya 1H
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Re: Define Phase Change

Postby Aliya 1H » Sat Jan 23, 2021 11:20 pm

Phases are solid, liquid, gas. A phase change is any time that a substance changes from one phase to another: solid to liquid, liquid to gas, gas to liquid, liquid to solid, solid to gas, gas to solid. Melting, freezing, boiling, etc. are examples of phase changes.

Andrew Yoon 3L
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Re: Define Phase Change

Postby Andrew Yoon 3L » Sun Jan 24, 2021 12:51 pm

Phase change is when a phase (solid, gas, and liquid) either melting, boiling, or freezing. The process of a phase changing to another phase is a phase change. For example, ice that melts to water is a phase change: it is melting.

Keon Amirazodi 3H
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Re: Define Phase Change

Postby Keon Amirazodi 3H » Sun Jan 24, 2021 12:59 pm

There are three phases of matter: solid, liquid, gas. A phase change is when the state of matter changes from one phase to another.

Ryan_Kien_1L
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Re: Define Phase Change

Postby Ryan_Kien_1L » Sun Jan 24, 2021 1:07 pm

A phase change is simply when an object changes from one state to another. It does not necessarily have to be between a solid and a liquid.

Edwin Liang 1I
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Re: Define Phase Change

Postby Edwin Liang 1I » Sun Jan 24, 2021 2:34 pm

A phase change is when a solid becomes a liquid or gas becoming a liquid or any combination of the three.

Sai Ramadas 1J
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Re: Define Phase Change

Postby Sai Ramadas 1J » Sun Jan 24, 2021 4:03 pm

A phase change is just when it changes from one state of matter (solid, liquid, gas) to another. It doesn't specifically mean any one state to another state.

Grace_Remphrey_2J
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Re: Define Phase Change

Postby Grace_Remphrey_2J » Sun Jan 24, 2021 4:17 pm

A phase change occurs when a substance is either heated or cooled and changes from one state to another. For example, when a solid is heated it may change phases to liquid or gas. The reverse can also occur when a change in pressure or temperature causes a change from gas to liquid or solid. Hope this helps!

Shreyank Kadadi 3K
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Re: Define Phase Change

Postby Shreyank Kadadi 3K » Sun Jan 24, 2021 4:42 pm

A phase change refers to the chemical state a substance is when it's converting from one phase to another. An important thing to note is that when a substance is undergoing a phase change, it is neither the phase that it previously was nor is it the phase that it will eventually become -- it is in an intermediate state.

josephspindler2H
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Re: Define Phase Change

Postby josephspindler2H » Sun Jan 24, 2021 4:52 pm

A phase change is when a substance changes from one state of matter to another (gas to liquid, solid to liquid, etc.). These occur at the melting point and boiling point, for example. These are the temperatures where such phase changes can occur.

Luveia Pangilinan 1A
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Re: Define Phase Change

Postby Luveia Pangilinan 1A » Sun Jan 24, 2021 4:54 pm

There are three states: Liquid, gas and solid.
Phase change is when one of the states of matter go from one state to another. In this case liquid to solid, solid to liquid, gas to liquid, liquid to solid, are all phase changes. This can happen either physically or chemically :D

manisha_joseph_1H
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Re: Define Phase Change

Postby manisha_joseph_1H » Sun Jan 24, 2021 4:54 pm

A phase change describes a change in one state of matter to another. For example, a solid changing to a liquid through fusion or a liquid changing to a vapor through vaporization.

David Y
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Re: Define Phase Change

Postby David Y » Sun Jan 24, 2021 5:40 pm

An example would be the melting of solid ice into a liquid water is a phase change

James_Hankee_1C
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Re: Define Phase Change

Postby James_Hankee_1C » Sun Jan 24, 2021 7:20 pm

Phase change when a substance goes from one state (solid, liquid, gas) to a different phase. Its the change in molecular bonds to form a new state of this substance.

Jerry_T
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Re: Define Phase Change

Postby Jerry_T » Sun Jan 24, 2021 7:46 pm

A phase change is simply when matter changes from one state to another (i.e. solid to liquid aka melting).

David Jen 1J
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Re: Define Phase Change

Postby David Jen 1J » Sun Jan 24, 2021 7:47 pm

Phase change is when a substance changes from one state of matter to another

Bryan Le 2K
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Re: Define Phase Change

Postby Bryan Le 2K » Sun Jan 24, 2021 7:50 pm

A phase change is when the state of matter of an substance changes between solid, liquid, or gas. For example, a liquid changing to a gas is considered a phase change.

Edison Tham 3D
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Re: Define Phase Change

Postby Edison Tham 3D » Sun Jan 24, 2021 7:56 pm

A phase change is when a substance goes from one phase (solid, liquid, gas) into another phase when energy is added/removed.

Ximeng Guo 2K
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Re: Define Phase Change

Postby Ximeng Guo 2K » Sun Jan 24, 2021 8:26 pm

In addition, temp doesn't change even when heat is supplied/released during phase change.

Lauren Strickland 1B
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Re: Define Phase Change

Postby Lauren Strickland 1B » Sun Jan 24, 2021 8:27 pm

A phase change is when substance changes from a solid, liquid, or gas to another phase.

Abraham De Luna
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Re: Define Phase Change

Postby Abraham De Luna » Sun Jan 24, 2021 10:59 pm

A phase change is when there is a change of state of matter.

Aanya Tanti 3C
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Re: Define Phase Change

Postby Aanya Tanti 3C » Sun Jan 24, 2021 11:00 pm

Phase change refers to any change of matter- such as solid to liquid or from gas to liquid.

Diana Aguilar 3H
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Re: Define Phase Change

Postby Diana Aguilar 3H » Sun Jan 24, 2021 11:07 pm

Phase change is when a substance goes/changes from one state of matter to another, an example would be when a solid changes to a liquid and so forth.

Armen_Isayan_2L
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Re: Define Phase Change

Postby Armen_Isayan_2L » Sun Jan 24, 2021 11:16 pm

Hello! A phase change is in regards to a substance changing from one state of matter to another, in essence from one phase to another phase as well. It is important to note that when a substance undergoes a phase change, it will take place under different temperate conditions, such as melting and boiling point.

Isaias Gomez D3A
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Re: Define Phase Change

Postby Isaias Gomez D3A » Sun Jan 24, 2021 11:22 pm

Pretty much :) just a change in its state of matter: gas, liquid, or solid.

Aydin Karatas 1F
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Re: Define Phase Change

Postby Aydin Karatas 1F » Sun Jan 24, 2021 11:23 pm

A phase change is a general term for the various processes (sublimation, vaporization, melting/fusion, etc.) where a substance changes its state.

Rose_Malki_3G
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Re: Define Phase Change

Postby Rose_Malki_3G » Sun Jan 24, 2021 11:25 pm

Phase change means that a substance has changed from one state of matter to another. An example of this would be liquid water becoming water vapor.

LovepreetSran_3H
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Re: Define Phase Change

Postby LovepreetSran_3H » Sun Jan 24, 2021 11:29 pm

It is the change in the state of matter.

Zihan Liu 2K
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Re: Define Phase Change

Postby Zihan Liu 2K » Sun Jan 24, 2021 11:40 pm

Phase change means a change from one phase to another. There are three phases for a matter: solid, liquid and gas. Phase change would be an example of changing from solid to gas

Nicoli Peiris 1B
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Re: Define Phase Change

Postby Nicoli Peiris 1B » Mon Jan 25, 2021 12:23 pm

A phase change is when a substance changes from liquid, solid, or gas to any other state it initially wasn’t. Example) gas to solid or gas to liquid.

My-Lan Le 1L
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Re: Define Phase Change

Postby My-Lan Le 1L » Wed Jan 27, 2021 4:19 pm

It is when energy is applied in the form of heat to shift molecules from one phase to another. Some examples include solid to liquid and liquid to gas. A phase change can also happen when energy is released in the form of heat. Some examples of this include a gas to a liquid and a liquid to a solid.

jessicasilverstein1F
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Re: Define Phase Change

Postby jessicasilverstein1F » Thu Jan 28, 2021 11:21 am

A phase change is just any time that a substance changes from one phase to another

Lucy_Balish_3G
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Re: Define Phase Change

Postby Lucy_Balish_3G » Thu Jan 28, 2021 11:56 am

To add on to what everyone else has said, when you look at a phase change graph, each new state is represented as a line with a new slope. So when the slope of the line changes, the phase is changing for that substance.

Chelsea_Guzman_3C
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Re: Define Phase Change

Postby Chelsea_Guzman_3C » Thu Jan 28, 2021 12:00 pm

A phase change is when a substance changes to another state. Ex. liquid to gas. Certain temperatures cause this change, such as melting or boiling point.

Maddie Turk Disc 2J
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Re: Define Phase Change

Postby Maddie Turk Disc 2J » Thu Jan 28, 2021 1:28 pm

Hi! So a phase change is just when something changes from one phase (solid, liquid, gas) to another! Hope this helps:)

reyvalui_3g
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Re: Define Phase Change

Postby reyvalui_3g » Fri Jan 29, 2021 11:13 pm

Yes, you are right a solid changing to a liquid is a phase change because the matter is changing forms.

Gian Boco 2G
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Re: Define Phase Change

Postby Gian Boco 2G » Sun Jan 31, 2021 9:38 am

Essentially a change in the state of matter
Solid to Liquid to gas and backwards

Vanshika Bhushan 1A
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Re: Define Phase Change

Postby Vanshika Bhushan 1A » Sun Jan 31, 2021 11:16 am

During a phase change, matter changes from one phase to another, either through the addition of energy by heat and the transition to a more energetic state, or from the removal of energy by heat and the transition to a less energetic state. Some phase changes include melting, vaporization, sublimation, condensation and freezing.

Shana Patel 1C
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Re: Define Phase Change

Postby Shana Patel 1C » Sun Jan 31, 2021 12:00 pm

A phase change is when the state of matter of an substance changes between solid, liquid, or gas.

David Y
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Re: Define Phase Change

Postby David Y » Sun Jan 31, 2021 3:34 pm

It is the factor of one phase being changed to another, like freezing a liquid into a solid (ice)

Kristina Krivenko 3I
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Re: Define Phase Change

Postby Kristina Krivenko 3I » Sun Jan 31, 2021 5:20 pm

The official definition of phase change is as follows: a phase change is when matter changes to from one state (solid, liquid, gas, plasma) to another.

So, essentially, a phase change occurs whenever matter goes from one state to another. There is a diagram (http://www.chemistry.wustl.edu/~edudev/LabTutorials/CourseTutorials/bb/Thermochem/images/PhaseChanges.jpg) that I found useful to memorize the names for all phase changes. Most of them are familiar to us, since we often use them in our daily life, but I had to memorize some of them, such as sublimation and deposition, just in case, as I wasn't as familiar with those terms.

MCalcagnie_ 1D
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Re: Define Phase Change

Postby MCalcagnie_ 1D » Sun Jan 31, 2021 8:56 pm

A phase change is essentially when a substance changes form from one phase (solid, liquid, gas, plasma) to another. This can also doesn't have to go in only one direction. This can be solid to liquid, liquid to gas, it can even be solid to gas. These are all possible in reverse as well.

Presley Gao 2C
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Re: Define Phase Change

Postby Presley Gao 2C » Sun Jan 31, 2021 9:14 pm

A phase change specifically means when a substance transitions from one phase to another. These phases include solid, liquid, gas, plasma, etc. These phase transitions are completely reversible and do not change the component of the substance - just its state.

Ansh Patel 2I
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Re: Define Phase Change

Postby Ansh Patel 2I » Sun Jan 31, 2021 9:26 pm

Hi! Phase change simply means a change in the state of matter of a substance, such as liquid water being heated and turned into a gas.

Jared Limqueco 3E
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Re: Define Phase Change

Postby Jared Limqueco 3E » Sun Jan 31, 2021 9:29 pm

Phase change is a change in state, like from liquid state to solid state.

Annie Liang 3D
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Re: Define Phase Change

Postby Annie Liang 3D » Sun Jan 31, 2021 9:31 pm

A phase change is a physical change (not a chemical change) that changes the state of matter. A change from a solid to a liquid is a phase change involving the overcoming of intermolecular forces.

Joshua Chung 2D
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Re: Define Phase Change

Postby Joshua Chung 2D » Sun Jan 31, 2021 9:32 pm

A phase change is whenever a substance changes its state of matter (solid, liquid, or gas).

Sophia Kalanski 1A
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Re: Define Phase Change

Postby Sophia Kalanski 1A » Sun Jan 31, 2021 9:40 pm

a phase change is just when a substance, like water, changes its state of matter and we try to find how much heat must be put in or taken out to allow that chnage to occur.

rita_debbaneh2G
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Re: Define Phase Change

Postby rita_debbaneh2G » Sun Jan 31, 2021 11:30 pm

A phase change is when matter transitions from one state to another. There are three different phases to transition between: solid, liquid, and gas. Melting is when the solid transitions to the liquid and evaporation is when the liquid transitions to the gas. Alternatively, condensation is when the gas transitions to a liquid and freezing is when liquid transitions to a solid. Lastly, sublimation is when the solid shifts immediately to a gas and deposition is when gas immediately shifts to a solid (as opposed to condensing into a liquid and so forth).

Thomas Gimeno
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Re: Define Phase Change

Postby Thomas Gimeno » Sun Jan 31, 2021 11:38 pm

A phase change is when something changes from one phase to another. This can be something like melting where something goes from solid to liquid but it could also be something like deposition where a gas changes to a solid.

RyanKopeikin_2I
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Re: Define Phase Change

Postby RyanKopeikin_2I » Tue Feb 02, 2021 5:10 pm

Phase change is when something transforms into another form. For example, a phase change occurs when liquid water becomes water vapor (gas).

Kimiya Aframian IB
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Re: Define Phase Change

Postby Kimiya Aframian IB » Tue Feb 02, 2021 5:56 pm

Melissa Solis 1H wrote:What does phase change mean specifically? Or is it just a solid changing into a liquid?

Hi! A phase change is a change in the state of matter, meaning the transition between a l to a g, s to l, g to s, etc. While phase changes don't necessarily have changes in temperature, they do have changes in input/output energy. Hope this helps!

Hasan Mirza 3F
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Re: Define Phase Change

Postby Hasan Mirza 3F » Tue Feb 02, 2021 6:55 pm

Remember the 3 phases are: gas, liquid, solid.
When a substance in any one phase changes to any other phase a phase change occurs.

gabbi_r2C
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Re: Define Phase Change

Postby gabbi_r2C » Tue Feb 02, 2021 6:57 pm

a phase change is a change between solids, liquids, and gases; a solid-->gas (sublimation), gas-->liquid (condensation), etc. its a change in potential energy only, not temperature

Jeremy Wei 2C
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Re: Define Phase Change

Postby Jeremy Wei 2C » Sun Feb 07, 2021 3:56 am

Hi! Phase change is essentially the change between the phases of solid, liquid, and gas. Hope this helps!

Carly_Lipschitz_3H
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Re: Define Phase Change

Postby Carly_Lipschitz_3H » Sun Feb 07, 2021 3:30 pm

Phase changes occur whenever a substance changes phases. The phases consist of solid, liquid, and gas. A phase change occurs whenever a substance undergoes a change into another phase. Melting, freezing, vaporization, and sublimation are some examples.

Ziyan Peng 3A
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Re: Define Phase Change

Postby Ziyan Peng 3A » Sun Feb 07, 2021 3:41 pm

A phase change is when the state of the matter (solid/liquid/gas) is changed. For example it could be ice melting, which is from solid to liquid.

Charisma Arreola 2F
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Re: Define Phase Change

Postby Charisma Arreola 2F » Sun Feb 07, 2021 4:09 pm

A phase change is when the substance either releases or takes in heat to go between a solid, liquid, or gas.

Vivian_Le_1L
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Re: Define Phase Change

Postby Vivian_Le_1L » Sun Feb 07, 2021 4:10 pm

A phase change is when a substance changes from one state of matter to another. i.e. solid -> liquid (melting), liquid -> gas (vaporization), gas -> liquid (condensation), liquid -> solid (freezing), solid -> gas (sublimation), gas ->solid (deposition).

Mingzi Yang 1E
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Re: Define Phase Change

Postby Mingzi Yang 1E » Sun Feb 07, 2021 4:38 pm

Phase change occurs when a substance of one form changes to another form. For example, liquid water becomes a solid (ice).

Gian Boco 2G
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Re: Define Phase Change

Postby Gian Boco 2G » Sun Feb 07, 2021 6:38 pm

A change in state of matter is how I think about it. So changes between solids, liquids, and gases.

Neel Sharma 3F
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Re: Define Phase Change

Postby Neel Sharma 3F » Sun Feb 07, 2021 6:42 pm

Phase changes include solid to liquid, liquid to gas, and solid to gas. The reverse of all of these is also phase changes. A heating curve can show how where delta H of phase changes works with specific heat capacity. Hope this helps!

Joel Meza 3I
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Re: Define Phase Change

Postby Joel Meza 3I » Sun Feb 07, 2021 6:47 pm

A phase change is a change in the state of matter where the different states are solid, liquid and gas. So a phase change is a change from one of the states I mentioned to another state.

chinmayeec 2H
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Re: Define Phase Change

Postby chinmayeec 2H » Sun Feb 07, 2021 6:52 pm

The phases are solid, liquid, and gas. The phase changes are any phase changing into another: for example, solid to gas is sublimation. There are different enthalpies for each phase change such as the enthalpy of vaporization or the enthalpy of fusion.

Dane_Beasley_1E
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Re: Define Phase Change

Postby Dane_Beasley_1E » Sun Feb 07, 2021 8:53 pm

A phase change is when one state of matter changes into another state of matter. For example, when an ice cube melts into water that would be a phase change from solid to liquid.

Jose Miguel Conste 3H
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Re: Define Phase Change

Postby Jose Miguel Conste 3H » Sun Feb 07, 2021 10:04 pm

phase changes are going from solid to liquid, liquid to gas, gas to liquid, so on and so forth.

Moura Girgis 1F
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Re: Define Phase Change

Postby Moura Girgis 1F » Sun Feb 14, 2021 6:39 pm

a phase change is any change between the states of matter. This includes solid to liquid, liquid to gas, solid to gas, or vice versa.

Isabella Cortes 2H
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Re: Define Phase Change

Postby Isabella Cortes 2H » Sun Feb 14, 2021 6:40 pm

phase changes are when a substance changes its state of matter! for example, a substance going from solid to liquid

rhettfarmer-3H
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Re: Define Phase Change

Postby rhettfarmer-3H » Sun Feb 14, 2021 7:49 pm

A phase change just refers to a change in state matter whether that be solid to gas or solid to liquid or gas to liquid or liquid to gas. Any of these and the rest are changes of one state to another. Hence, it allows us to see when the particle changes different states.

Lung Sheng Liang 3J
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Re: Define Phase Change

Postby Lung Sheng Liang 3J » Sun Feb 14, 2021 8:14 pm

Phase change is when a substance changes the state of matter they are in, ex: solid to liquid, liquid to gas.

Britney Tran IJ
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Re: Define Phase Change

Postby Britney Tran IJ » Sun Feb 14, 2021 9:05 pm

phase changes= when something changes state of matter

Naomi Hernandez-Ramirez 1J
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Re: Define Phase Change

Postby Naomi Hernandez-Ramirez 1J » Sun Feb 14, 2021 10:43 pm

Phase change means when a substance changes its state of matter. For instance water going from liquid to solid than gas, each step is a phase change.

Sara Sandri 2B
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Re: Define Phase Change

Postby Sara Sandri 2B » Mon Feb 15, 2021 1:22 pm

A phase change is usually going from one state of matter to another. It's important to keep in mind that temperature does not change during a phase change. I recommend looking at the graph of phase changes for water since that helped me understand what exactly was going on.

Sam_Marasigan_3D
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Re: Define Phase Change

Postby Sam_Marasigan_3D » Mon Feb 15, 2021 2:12 pm

Phase change is basically when substances (solid,liquid,gas) change into a different state. The substance is either melting (solid to liquid) or vaporizing (liquid to gas). Phase changes occur in a constant temperature.

alebenavides
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Re: Define Phase Change

Postby alebenavides » Mon Feb 15, 2021 7:40 pm

phase change is when it goes from one state to another (melting, freezing, etc)

Gabriel Nitro 1E
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Re: Define Phase Change

Postby Gabriel Nitro 1E » Mon Feb 15, 2021 7:45 pm

Hi,

A phase change is defined as any transition from one of three states of matter covered in the course (solid, liquid, gas).

For instance, a block of ice (solid) melting in water (liquid) is a phase change. Water vapor (gas) condensing into water (liquid) is also a phase change.

Hope this helps! :)


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