試題詳解

9. The pressure of an ideal gas becomes three times of its initial pressure during an adiabatic process. What is the ratio of its final volume to its initial volume? γ is the ratio of the constant-pressure specific heat to the constant-volume specific heat of this.
(A) 1/3
(B) 3^-γ
(C) 3^γ
(D) 3^-1/γ
(E)  3^1/γ