(DeltaU)=q+w Isothermal


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Jack Papciak 2F
Posts: 31
Joined: Fri Sep 29, 2017 7:06 am

(DeltaU)=q+w Isothermal

Postby Jack Papciak 2F » Tue Feb 13, 2018 8:45 pm

I know that when there is no heat flow, DeltaU=w, but are there any other circumstances when an equation can be changed like that because it is isothermal or something that has a constant volume?

Angela 1K
Posts: 80
Joined: Fri Sep 29, 2017 7:05 am

Re: (DeltaU)=q+w Isothermal

Postby Angela 1K » Tue Feb 13, 2018 10:15 pm

For isothermal reactions, and so

104969854
Posts: 36
Joined: Fri Sep 29, 2017 7:05 am

Re: (DeltaU)=q+w Isothermal

Postby 104969854 » Tue Feb 13, 2018 10:16 pm

At constant volume, work=0, so q=delta U
At constant Temperature, q= -w, so delta U and delta H equal 0
At constant Heat, change in heat is equal to zero, so w= delta U. Also, entropy under this condition would be 0.


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