Page 1 of 1

Cp and Cv

Posted: Wed Feb 05, 2020 10:07 pm
by Andrew Liang 1I
Can someone explain what is Cp and Cv? What is their relationship? Are there any equation that has Cp and Cv in it?

Re: Cp and Cv

Posted: Wed Feb 05, 2020 11:22 pm
by chemboi
The subscript describes the conditions: Cp is for constant pressure, Cv is for constant volume.

Re: Cp and Cv

Posted: Wed Feb 05, 2020 11:35 pm
by Adriana_4F
For an ideal gas, Cp,m=Cv,m + R
Cp,m is the molar heat capacity at a constant pressure
Cv,m is the molar heat capacity at a constant volume
R is the gas constant

Re: Cp and Cv

Posted: Wed Feb 05, 2020 11:47 pm
by Matt Sanruk 2H
Where would m*C*delta T be in this situation?

Re: Cp and Cv

Posted: Thu Feb 06, 2020 11:20 am
by aishwarya_atmakuri
Cp is the heat capacity at constant pressure. Cv is the heat capacity at constant volume. According to PV = nRT, if temperature is changing, that means one other variable also has to change and this could be number of moles, pressure, or volume. It is important to know which ones are constant when calculating heat capacity.