Cv vs. Cp
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Re: Cv vs. Cp
Cv is used for systems with constant volume. Cp is used for systems with constant pressure.
Re: Cv vs. Cp
Cv is used for systems with constant volume; Cv= (3/2)R, if diatomic then Cv= (5/2)R
Cp is used for systems with constant pressure; Cp = (5/2)R, if diatomic then Cv= (7/2)R
Cp is used for systems with constant pressure; Cp = (5/2)R, if diatomic then Cv= (7/2)R
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Re: Cv vs. Cp
Cv refers to the molar heat capacity of a gas at constant volume. Cp refers to the molar heat capacity of a gas at constant pressure. The two are different because in order to maintain the same pressure throughout a reaction the volume would have to be changing, and maintaining volume would require work to keep the piston from moving. Constant v calorimetry uses a bomb calorimeter.
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Re: Cv vs. Cp
It depends on the conditions of the system, for example, a system with constant volume would have Cv (notice the subscript v) and a system with a constant pressure would be written as Cp for the molar heat constant.
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