freezing

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jonathan chi 1J
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freezing

Postby jonathan chi 1J » Thu Jan 20, 2022 5:34 pm

Is freezing endothermic or exothermic?

Jennifer Huynh 3I
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Re: freezing

Postby Jennifer Huynh 3I » Thu Jan 20, 2022 5:44 pm

Freezing is an exothermic process because as bonds form, molecules are at a lower potential energy state, so energy is released as heat. In an exothermic reaction, there is a net release of heat.

Triston Dinh 1D
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Re: freezing

Postby Triston Dinh 1D » Thu Jan 20, 2022 6:05 pm

Freezing is an exothermic process because bond formation releases energy. On the other hand, breaking bonds requires energy so a process like melting would be endothermic.

Minoo Bastani 2J
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Re: freezing

Postby Minoo Bastani 2J » Thu Jan 20, 2022 7:35 pm

Freezing is exothermic because heat is released in order to make bonds, while heat is required to break bonds. That is why melting, on the opposite side, would be endothermic.

Achyutha Kodavatikanti_3H
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Re: freezing

Postby Achyutha Kodavatikanti_3H » Thu Jan 20, 2022 7:39 pm

Freezing is exothermic as hydrogen bonds forming releases energy. liquid --> solid means hydrogen bonds formed

Diya Kar
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Re: freezing

Postby Diya Kar » Fri Jan 21, 2022 12:09 am

Freezing is a phase change that is considered an exothermic process as liquid releases energy to form solid.

Michelle Gong
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Re: freezing

Postby Michelle Gong » Fri Jan 21, 2022 12:17 am

Freezing is when a liquid turns into a solid, so it is releasing energy to form bonds which means it is an exothermic process which means it has a change in enthalpy that is negative!

805401611
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Re: freezing

Postby 805401611 » Fri Jan 21, 2022 3:17 am

Freezing is an exothermic reaction, as it is releasing heat (heat is being removed from the system) when it creates bonds in order to become a solid. With that, we know that its change in enthalpy is negative as a result. Hope that helps!

Grace_Wu
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Re: freezing

Postby Grace_Wu » Fri Jan 21, 2022 8:11 am

Hi!
Freezing in exothermic. It's from liquid phase to solid phase, which means bond are formed, and in order to form bonds, energy is released.

Milan Vognarek 1A
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Re: freezing

Postby Milan Vognarek 1A » Fri Jan 21, 2022 11:44 pm

Freezing is exothermic since heat is released as new bonds are formed when the liquid is converted to solid.

Terrence Chi
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Re: freezing

Postby Terrence Chi » Fri Jan 21, 2022 11:52 pm

Hi, freezing is exothermic reaction since water becomes a solid, it releases heat, warming up its surroundings. Hope this helps!

Sidharth Paparaju 3B
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Re: freezing

Postby Sidharth Paparaju 3B » Sat Jan 22, 2022 12:10 am

Freezing is exothermic since if something is freezed (liquid to solid), the thermal energy must decrease (or must be released).

Nomi Heidari-Bateni 2K
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Re: freezing

Postby Nomi Heidari-Bateni 2K » Sat Jan 22, 2022 2:20 am

Freezing is exothermic. This is due to the fact that when a substance goes from liquid to solid, the particles are getting closer to closer and the reason for this is a formation of stronger bonds between the particles. As we know, bond formation releases energy, making freezing exothermic.

Kayla Tran 3C
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Re: freezing

Postby Kayla Tran 3C » Sat Jan 22, 2022 2:50 am

Freezing is an exothermic process because bonds are formed from liquid to solid, which releases energy.

Diana Avalos
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Re: freezing

Postby Diana Avalos » Sat Jan 22, 2022 10:40 pm

Freezing is an exothermic phase change as it liquid releases energy to become a solid!

205705413
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Re: freezing

Postby 205705413 » Sat Jan 22, 2022 11:56 pm

Freezing is an exothermic process.

Konmal Ali 1G
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Re: freezing

Postby Konmal Ali 1G » Sun Jan 23, 2022 12:01 am

It is first important to know that chemical reactions which release energy are exothermic while endothermic reactions absorb energy. As a result, freezing is an exothermic process since energy is being released. On the other hand, processes such as photosynthesis would be considered as endothermic since they absorb energy in the form of heat. I hope this helps!

Daniel Tabibian 3K
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Re: freezing

Postby Daniel Tabibian 3K » Sun Jan 23, 2022 1:09 am

Freezing is exothermic because the liquid releases energy when forming hydrogen bonds.

Shawn Suen
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Re: freezing

Postby Shawn Suen » Sun Jan 23, 2022 3:46 am

Freezing is exothermic because the substance is releasing energy to form the intermolecular bond.

Muryam_Hasan_2I
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Re: freezing

Postby Muryam_Hasan_2I » Sun Jan 23, 2022 9:25 am

Freezing is exothermic. Since it's kind of hard to imagine cooling something as that substance releasing heat, a good way to get to this conclusion is thinking about its reverse: melting. We know that you heat something to melt it, meaning that it is endothermic. This means that its reverse (freezing) is exothermic. Furthermore, when water freezes into an ice cube, the temperature of water decreases in this phase change, which means that heat is being lost and thus released.

isabella garcia - 1G
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Re: freezing

Postby isabella garcia - 1G » Sun Jan 23, 2022 9:28 am

Freezing is exothermic, because as the substance is freezing, it releases heat into its surroundings to form the bonds that will allow it to become a solid.

Ivy Vo Dis 1C
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Re: freezing

Postby Ivy Vo Dis 1C » Sun Jan 23, 2022 10:51 am

Freezing is an exothermic process. This is because the liquid water will release heat energy in order to form Hydrogen bonds. Once these bonds are formed, the liquid water will turn into a solid ice.

Alexandra Gill
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Re: freezing

Postby Alexandra Gill » Sun Jan 23, 2022 3:48 pm

freezing is exothermic because the liquid will release heat to form H bonds.

Aaron Kim 1J
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Re: freezing

Postby Aaron Kim 1J » Sun Jan 23, 2022 4:21 pm

Freezing is an exothermic process; heat is released in order to create bonds and to change the liquid into a solid. Thus, the change in enthalpy is negative.

14b_student 2E
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Re: freezing

Postby 14b_student 2E » Sun Jan 23, 2022 4:33 pm

Freezing is exothermic

605607825
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Re: freezing

Postby 605607825 » Sun Jan 23, 2022 4:53 pm

Hello,

Freezing would be considered to be an exothermic process since bonds are being formed. Energy is released in the form of heat since the molecules are at a lower [potential energy state. Melting is an example of an endothermic process since breaking bonds requires energy. I hope this helped!

taline krumian 1L
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Re: freezing

Postby taline krumian 1L » Sun Jan 23, 2022 6:49 pm

As a substance freezes, it releases heat into its surroundings. Therefore, the reaction is exothermic.

Jelix Tsan 2H
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Re: freezing

Postby Jelix Tsan 2H » Sun Jan 23, 2022 6:54 pm

freezing is exothermic because for an object to go from a liquid state to a solid state, the average KE of the particles need to decrease such that the particles have a greater chance of forming bonds with one another. As such, freezing requires a loss of heat, meaning it is an exothermic process

ThomasL1L
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Re: freezing

Postby ThomasL1L » Sun Jan 23, 2022 7:02 pm

Freezing is an exothermic phase change as forming bonds requires them to lose energy while breaking bonds requires energy.

ThomasL1L
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Re: freezing

Postby ThomasL1L » Sun Jan 23, 2022 7:03 pm

Freezing is an exothermic process as forming bonds does not require an influx of energy while breaking bonds does.

asfakhan_2H
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Re: freezing

Postby asfakhan_2H » Sun Jan 23, 2022 10:40 pm

I think the process of Freezing is exothermic because during the process the heat is released in order to make bonds. Usually while heat is required to break bonds which is why the process of melting would be endothermic.

Alice Weber 3I
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Re: freezing

Postby Alice Weber 3I » Sun Jan 23, 2022 10:42 pm

Freezing is exothermic because when it turns into a solid, energy is released.

Samantha Quevedo 2L
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Re: freezing

Postby Samantha Quevedo 2L » Sun Jan 23, 2022 10:45 pm

Freezing is an exothermic reaction because heat is being released.

505749458
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Re: freezing

Postby 505749458 » Sun Jan 23, 2022 10:51 pm

Since freezing is when intermolecular bonds form, and bond formations release energy (because bonds are more stable so the species will be at a lower potential energy), freezing is exothermic.

Aaron Martinez
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Re: freezing

Postby Aaron Martinez » Sun Jan 23, 2022 10:59 pm

Freezing is exothermic. Exothermic reactions release energy, and in order for the liquid to form into a solid, the liquid must lose energy.

tashyavakil 2K
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Re: freezing

Postby tashyavakil 2K » Sun Jan 23, 2022 11:01 pm

This process of freezing is exothermic

trucle_2I
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Re: freezing

Postby trucle_2I » Sun Jan 23, 2022 11:06 pm

Freezing would be exothermic.

Nicole Weinstein 3E
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Re: freezing

Postby Nicole Weinstein 3E » Sun Jan 23, 2022 11:13 pm

Freezing is exothermic because heat is released to form bonds where the system becomes more stable. On the other hand, melting would be endothermic because it requires heat to break the bonds and initiate a phase change.

Trisha Badjatia 2L
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Re: freezing

Postby Trisha Badjatia 2L » Sun Jan 23, 2022 11:38 pm

Hi! Freezing is an exothermic process. Freezing is the process of a substance turning from liquid to solid, and bonds in solid substances are lot stronger than in liquid substances. Forming stronger bonds gives off energy, which is partially why the substance gives off heat to the surroundings. Each atom in the substance also loses kinetic energy when the substances freezes. This takes heat away from the system, making it an exothermic process. Hope that helps!

Minh Nguyen 3H
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Re: freezing

Postby Minh Nguyen 3H » Sun Jan 23, 2022 11:41 pm

Freezing is an exothermic process, as the phase change from a liquid to a solid involves the formation of more bonds. The formation of bonds releases energy/heat, and as such is an exothermic process.

Jonathan Liu 2I
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Re: freezing

Postby Jonathan Liu 2I » Mon Jan 24, 2022 12:11 am

Freezing is an exothermic reaction because energy is released when water turns into ice and energy is absorbed when ice turns into water.

Gianna Sciole 2F
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Re: freezing

Postby Gianna Sciole 2F » Mon Jan 24, 2022 1:23 am

freezing is an exothermic reaction. the way i remember it is that heat is required to break bonds, and heat is let off when bonds are made. when a liquid is turning into a solid (or freezing), bonds are being made, so heat is being released, which means it is an exothermic phase change.

KyleNagasawaDisc3C_Chem 14B2022W_
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Re: freezing

Postby KyleNagasawaDisc3C_Chem 14B2022W_ » Mon Jan 24, 2022 9:11 am

Freezing accompanies the transition of a species from a liquid to a solid. Given that there is a net loss in energy (we know that solids have fewer degrees of freedom and overall less KE) we can roughly say that the system loses heat and dH < 0.

jaycmartinezDisc3b
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Re: freezing

Postby jaycmartinezDisc3b » Mon Jan 24, 2022 7:39 pm

Freezing would be exothermic as energy would be released from the molecules as the phase change is happening. It seems counterintuitive since ice is could to the touch, but this is because the ice is absorbing energy from your hands to turn back into a liquid. Hope this helps :)

Aaron Kwan 3B
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Re: freezing

Postby Aaron Kwan 3B » Mon Jan 24, 2022 11:17 pm

An exothermic reaction gives off heat. When you touch an ice cube, it melts and your hand feels cold. The cold sensation is caused when heat flows from your hand to the cube (melting is endothermic). If we imagine the opposite, if your hand was the temperature of a freezer, heat would flow from the cube to your hand, and the cube would freeze. This is why freezing is exothermic.

Coraly De Leon
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Re: freezing

Postby Coraly De Leon » Mon Jan 24, 2022 11:51 pm

Hello,
Just as my peers mentioned, freezing is an exothermic process: when water becomes solid, it releases heat.

405490807
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Re: freezing

Postby 405490807 » Mon Jan 24, 2022 11:55 pm

As previously mentioned freezing is an exothermic phase change in which heat is released

Sabira Mohammed 3I
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Re: freezing

Postby Sabira Mohammed 3I » Tue Jan 25, 2022 10:08 am

Freezing is exothermic because heat is released

Crystal Ma 2J
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Re: freezing

Postby Crystal Ma 2J » Tue Jan 25, 2022 12:23 pm

freezing is exothermic since it releases heat!

Martha Avila 1I
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Re: freezing

Postby Martha Avila 1I » Tue Jan 25, 2022 3:29 pm

Hello. Freezing is an exothermic process because in order for a phase change to occur you need a release of energy. In order for a liquid to transition into a solid you need heat to be removed. Hope this helps!

Caitlyn Lo 2F
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Re: freezing

Postby Caitlyn Lo 2F » Tue Jan 25, 2022 4:01 pm

Freezing is an exothermic process because as bonds are being formed, energy/heat is being released. In addition, melting is an endothermic process and because of this, this means that freezing is an exothermic process.

Rebecca Preusch 2C
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Re: freezing

Postby Rebecca Preusch 2C » Tue Jan 25, 2022 4:27 pm

exothermic

Nicole Friday 1E
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Re: freezing

Postby Nicole Friday 1E » Tue Jan 25, 2022 6:35 pm

Freezing is exothermic because it releases heat to form bonds that make it a solid.

Sophia Manos 1F
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Re: freezing

Postby Sophia Manos 1F » Sun Mar 13, 2022 10:03 pm

Freezing is an exothermic process because energy/heat is being released while new bonds are forming. The reverse process, melting, is endothermic so it makes sense that freezing would be exothermic. Hope this helps!

Ameen Shaheen 2I
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Re: freezing

Postby Ameen Shaheen 2I » Sun Mar 13, 2022 10:05 pm

freezing is exothermic as heat is being released as it phase changes from a liquid to a solid non-spontaneously

isabella garcia - 1G
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Re: freezing

Postby isabella garcia - 1G » Sun Mar 13, 2022 10:07 pm

Freezing is exothermic because heat is being released as the substance is cooled and becomes a solid.

505749458
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Re: freezing

Postby 505749458 » Sun Mar 13, 2022 10:08 pm

Freezing is an exothermic process because energy is released as more intermolecular bonds are formed, putting the molecules at a lower energy state.

Jacquelyn Rivera 2I
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Re: freezing

Postby Jacquelyn Rivera 2I » Sun Mar 13, 2022 10:11 pm

Freezing is an exothermic process because the solidification allows for more bonds to form, releasing heat. When that heat is released, the substance internally cools.

Shannon Clark 1F
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Re: freezing

Postby Shannon Clark 1F » Sun Mar 13, 2022 10:14 pm

Freezing is exothermic because there is a net loss of heat!

Vanessa Bartoli 1C
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Re: freezing

Postby Vanessa Bartoli 1C » Sun Mar 13, 2022 10:16 pm

exothermic because bond formation releases energy

Leily Garcia 1C
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Re: freezing

Postby Leily Garcia 1C » Sun Jan 22, 2023 8:42 pm

Because when freezing a liquid, the temperature needs to be colder to change states of being, heat and pressure are released making it an exothermic reaction. Since the heat cannot just disappear, it warms up its surroundings instead. In other words, the heat is removed to make the liquid cold enough to change into freezing.

Daniella Viorato 2G
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Re: freezing

Postby Daniella Viorato 2G » Sun Jan 22, 2023 9:32 pm

Freezing is considered an exothermic process --> heat is emitted in this process

Neha Thakkar 2H
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Re: freezing

Postby Neha Thakkar 2H » Sun Jan 22, 2023 9:45 pm

Freezing is an exothermic process because it releases energy.

Harsha Kancharla 2E
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Re: freezing

Postby Harsha Kancharla 2E » Sun Jan 22, 2023 10:32 pm

The reason freezing is exothermic is because more hydrogen bonds involving the hydrogen and oxygen atoms are being formed when molecules slow down. When bonds form, energy is released.

VictoriaPietrusiew2H
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Re: freezing

Postby VictoriaPietrusiew2H » Mon Jan 23, 2023 10:04 pm

Freezing is an exothermic process!

Hope_Hayashida_3E
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Re: freezing

Postby Hope_Hayashida_3E » Wed Jan 25, 2023 4:06 pm

Freezing is exothermic because heat is released to the surroundings. When going from a liquid to solid, more hydrogen bonds are formed, and the formation of bonds releases energy.

Audric Banuelos 1A
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Re: freezing

Postby Audric Banuelos 1A » Wed Jan 25, 2023 4:07 pm

Freezing would be considered exothermic because bonds are needed to form and the forming of bonds releases heat. Endothermic on the other hand would require heat.

Natalie Hurd 1H
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Re: freezing

Postby Natalie Hurd 1H » Thu Jan 26, 2023 2:46 pm

Freezing is exothermic! Heat is released as new bonds form to change from liquid state to solid state.

nikita_manyak28
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Re: freezing

Postby nikita_manyak28 » Thu Jan 26, 2023 3:54 pm

An endothermic reaction is one that requires energy to occur while an exothermic reaction releases energy. The process of freezing would be an exothermic reaction because it is building a molecule to make it solid and to build those bonds and bringing those together would have a net release of energy as heat.

Saba Honarvar 3A
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Re: freezing

Postby Saba Honarvar 3A » Fri Jan 27, 2023 11:29 pm

Freezing would be an exothermic because the heat and energy is released to form bonds.

Joyce Lee 1K
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Re: freezing

Postby Joyce Lee 1K » Sat Jan 28, 2023 12:00 am

Freezing would most definitely be an exothermic reaction because there are bond formations that result in a net loss of energy/heat.


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