Cp and Cv

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Nicole Nikolov 1K
Posts: 50
Joined: Fri Sep 29, 2017 6:05 am

Cp and Cv

Postby Nicole Nikolov 1K » Sun Mar 18, 2018 8:25 am

Is there a way to convert between the molar heat capacity at constant pressure and constant volume, Cp and Cv? Or would we have to be provided this information on an exam? Also, is there a way to convert between the specific heat capacity and the molar heat capacity?

Michele 2C
Posts: 23
Joined: Fri Sep 29, 2017 6:06 am

Re: Cp and Cv

Postby Michele 2C » Sun Mar 18, 2018 9:39 am

CP,m = CV,m + R

Or, the molar heat capacity at constant pressure is equal to the molar heat capacity at constant volume plus the gas constant.

Michaela Capps 1l
Posts: 50
Joined: Thu Jul 27, 2017 2:00 am

Re: Cp and Cv

Postby Michaela Capps 1l » Sun Mar 18, 2018 12:46 pm

Cp and Cv are usually just used for different conditions, either constant pressure or constant volume. I'm not sure when u would switch.

IsabelLight2H
Posts: 22
Joined: Tue Oct 02, 2018 11:15 pm

Re: Cp and Cv

Postby IsabelLight2H » Mon Jan 28, 2019 2:59 pm

If a system has Cp can it also have a Cv? and Vice Versa?

Jason Ye 2I
Posts: 20
Joined: Thu Sep 27, 2018 11:22 pm

Re: Cp and Cv

Postby Jason Ye 2I » Mon Jan 28, 2019 3:51 pm

They are used for different conditions and questions

BenJohnson1C
Posts: 49
Joined: Thu Sep 27, 2018 11:17 pm

Re: Cp and Cv

Postby BenJohnson1C » Mon Jan 28, 2019 9:37 pm

If the gas constant, R, must be used, would it be given on the test?


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