The molar heat capacity of a gas at constant volume is Cv. If n moles of the gas under ∆T change by n Cv ∆T change in temperature, it’s internal energy will change by n Cv ∆T

Q: The molar heat capacity of a gas at constant volume is C_v. If n moles of the gas under ∆T change by n C_v ∆T change in temperature, it’s internal energy will change by n C_v ∆T

(a) only if the change of temperature occurs at constant volume

(b) only if the change of temperature occurs at constant pressure

(c) in any process which is not adiabatic

(d) in any process

Ans: (d)