closed vs open?

[705596384]

What does it mean when a thermodynamic system is closed vs when it's an open system?

[Aparna Pillai 1E]

In both open and closed systems, energy can exchange with the surroundings. However, in an open system, matter can also exchange with the surroundings, while this is not the case for a closed system.

[505739628]

When a system is open, it can transfer both energy and matter while a closed system can only transfer energy. I think of it as an open beaker versus a beaker with a lid on it-- in the open beaker (open system) and in a closed beaker with a lid on (closed system) you can heat it up with a flame underneath it (transfer of energy). In the open beaker, water can evaporate and disperse into the surroundings, but this cannot happen in a closed beaker with a lid on. This represents how matter can only be transferred in open systems. Hope this helps!

[jackie-3L]

Open systems exchange energy and matter with the surroundings, whereas closed systems exchange only energy with the surroundings, not matter.

[trucle_2I]

In an open system, both matter and energy can be exchanged between a system and its surroundings while only energy can be exchanged between a closed system and its surroundings.

[Charmaine Ho 2G]

In an open system, matter and energy can be exchanged between the system and its surroundings.
In a closed system, only energy can be exchanged.

[Samuel Mushinski 2G]

To add, an isolated system transfers neither energy nor matter!

[Karen Harrison 1L]

I like to visually picture a closed system as closing a water bottle cap to a water bottle. Energy can still leave and enter through the plastic, but no molecules can enter. Versus opening a water bottle could allow gas, liquids, and solids to enter or leave, as well as energy.

[Chiara Frank]

Hello!
An open system refers to a system that allows both energy and matter to pass through. An example would be the human body. A closed system refers to a system that allows energy to pass through, but not matter. An example would be a cup of coffee with a lid on it. Furthermore, an isothermal system allows neither matter nor energy to pass through. An example would be a hydroflask. I hope this helps!

[Ellen Brock 2I]

An open system is able to exchange matter and energy from the system and surroundings. While a closed system can only exchange energy

[Nika Kononov 3E]

An open system can exchange matter and energy (heat, pressure) with its surroundings while a closed system can only exchange energy. An isolated system can't exchange matter or energy with its surroundings.

[Brynn 2F]

An open system can exchange matter and energy. A closed system can only exchange energy. An isolated system (usually an insulated system) can't exchange matter or energy with the environment.

[kaylasaens2A]

An open system can exchange energy and matter between the system and its surroundings. An example of this is a stovetop- heat and water vapor within the system (the stove) are released into the surroundings (the air). On the other hand, a closed system can only exchange energy between the system and its surroundings. An example of this is a closed water bottle- energy can be exchanged, but the water molecules can't.

[KatieFrancisco1F]

An open system means it is completely open to heat and energy transfer, closed means only energy can transfer between the system and environment, and in a perfectly isolated system, neither matter nor energy can be transferred between the system and surroundings

[Tristan Friet 3G]

When a thermodynamic system is open, it means that it can exchange both matter and energy with its surroundings. When a system is closed, it means that matter cannot be exchanged with our surroundings, but energy can.

[Matthew Nguyen 2F]

Closed vs open systems are describing the transfer of matter and energy. Open systems are able to transfer heat and matter between the system and the surroundings, while a closed system describes a system that can still transfer heat and energy but not matter.

[Isabella Perez Dis3L]

HI, basically for open and closed systems energy can be exchanged with its surroundings but in an open system only matter can also exchange with the surroundings. Hope this helps :)

[Omar Alkhalili 1J]

An open system can transfer matter and energy, while a closed system cannot transfer matter; it can only transfer energy.

[Marina Nimnual]

An open system is when both matter (ex: vapor) and energy (ex: heat) can exchange with the surrounding. On the other hand, a closed system can only exchange energy.

[Stephanie Rodas 2C]

When a thermodynamic system is closed, it can only exchange energy with its surroundings: it cannot exchange matter. However, if the system is open then it can exchange energy and matter in its surroundings.

[Mari Brielle Mailed 1B]

An open/closed/isolated system is a way to describe an object of interest (ex: a beaker) in comparison to its surroundings (everything else). This is how it was defined in lecture:

Open system: matter AND energy within the system can be exchanged with its surroundings
ex: an open beaker of H2O --> can lose matter (H20) through evaporation; can lose heat (lack of insulation)

Closed system: matter CANNOT be exchanged with the surroundings, but energy CAN be
ex: a sealed beaker of H2O --> can't gain/lose matter (H2O is sealed inside); heat transfer is possible


There is also something called an isolated system:

Isolated system: exchanges between the system and its surroundings is IMPOSSIBLE; matter or heat CANNOT escape/enter
ex: combustion of glucose in a bomb calorimeter