For an ideal gas, the heat capacity at constant pressure is larger than that at constant volume because

Options

A. Positive work is done during expansion of the gas by external pressure
B. Positive work is done during expansion by tep against external pressure
C. Positive work is done during expansion by the against intermolecular forces of attraction
D. Mote collisions occur per unit time when volume is less constant.

Answer

B

Explanation

For an ideal gas, the heat capacity at constant pressure is larger than that at constant volume because positive work is done during expansion by the gas against external pressure.