## Cp and Cv

Nicole Nikolov 1K
Posts: 50
Joined: Fri Sep 29, 2017 7:05 am

### Cp and Cv

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 7:06 am

### Re: Cp and Cv

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 3:00 am

### Re: Cp and Cv

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: 34
Joined: Wed Oct 03, 2018 12:15 am

### Re: Cp and Cv

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

Jason Ye 2I
Posts: 33
Joined: Fri Sep 28, 2018 12:22 am

### Re: Cp and Cv

They are used for different conditions and questions

BenJohnson1H
Posts: 68
Joined: Fri Sep 28, 2018 12:17 am

### Re: Cp and Cv

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