Internal energy of ideal gas


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Riya Sood 4G
Posts: 160
Joined: Sat Aug 24, 2019 12:18 am

Internal energy of ideal gas

Postby Riya Sood 4G » Tue Feb 11, 2020 1:06 pm

Is the internal energy of an ideal gas 0 at constant temperature?

Jack Riley 4f
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

Re: Internal energy of ideal gas

Postby Jack Riley 4f » Tue Feb 11, 2020 1:10 pm

the change in internal energy is 0 at constant temperature, however the internal energy itself is not necessarily 0 at constant temperature

Michelle Xie 2B
Posts: 99
Joined: Sat Aug 17, 2019 12:18 am

Re: Internal energy of ideal gas

Postby Michelle Xie 2B » Tue Feb 11, 2020 2:59 pm

only delta U, or change in internal energy is 0.

Anish Natarajan 4G
Posts: 51
Joined: Thu Jul 25, 2019 12:16 am

Re: Internal energy of ideal gas

Postby Anish Natarajan 4G » Tue Feb 11, 2020 3:01 pm

There will always be some internal energy due to the movement of molecules in a system; however the change in internal energy will be 0

Dina Marchenko 2J
Posts: 54
Joined: Thu Jul 25, 2019 12:16 am

Re: Internal energy of ideal gas

Postby Dina Marchenko 2J » Sat Feb 15, 2020 6:05 pm

Why is the change in internal energy of an ideal gas 0 at constant temperature? What about a constant temperature and it being an ideal gas makes the internal energy not change?

Leonardo Le Merle 1D
Posts: 56
Joined: Wed Feb 27, 2019 12:16 am

Re: Internal energy of ideal gas

Postby Leonardo Le Merle 1D » Thu Mar 12, 2020 11:44 am

They DO have internal energy, but there is no change in internal energy. Basically, because ideal gas are extremely non-reactive particles (already fully stable), they don't "see" each other at all. The average kinetic energy is nothing else than the temperature of the ideal gas, and if this is constant, there will be no change in U.

Tanmay Singhal 1H
Posts: 143
Joined: Sat Jul 20, 2019 12:16 am

Re: Internal energy of ideal gas

Postby Tanmay Singhal 1H » Thu Mar 12, 2020 11:46 am

the change is 0 but not the internal energy


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