The relation between Cp and Cv for an ideal gas (per mole) is:

Question

Accepted Answer

A. Cp − Cv = R

1. Cv comes from ΔU at constant V; Cp comes from ΔU + PΔV at constant P.
2. The extra PΔV term at constant P equals nRΔT per mole.
3. So Cp = Cv + R (Mayer's relation).
4. Hence Cp − Cv = R.
_Source: syllabus Physics Ch 11, §11.6 Specific Heat Capacity_

Answer

Cp + Cv = R

Answer

Cp / Cv = R

Answer

Cp · Cv = R

The relation between Cp and Cv for an ideal gas (per mole) is:

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