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### Molar Heat Capacity Formula of Cp and Cv

Posted: **Thu Jan 21, 2016 9:09 pm**

by **VictoriaRoderick_3A**

I was just wondering if there were different equations for when the pressure is constant and volume is constant. Or do you use the same equation?

Thank You.

### Re: Molar Heat Capacity Formula of Cp and Cv

Posted: **Fri Jan 22, 2016 11:00 am**

by **Chem_Mod**

They are present in the same equations the only difference being whether the process is constant volume or constant pressure.

### Re: Molar Heat Capacity Formula of Cp and Cv

Posted: **Sat Jan 23, 2016 11:54 am**

by **Brianna**

When calculating Cv and Cp, the same equation is used except for the Cv calculation, you use 3/2R as the ideal gas constant and for the Cp calculation, you use 5/2R are the ideal gas constant. (This is for monoatomic molecules)