試題詳解

25. Consider n moles of an ideal gas being compressed isothermally at absolute temperature T from an initial volume V₁ to a final volume V₂. The R and ke are, respectively, universal gas constant and Boltzmann constant. What is the change in entropy?
(A) nR In (V₂/V₁)
(B) nRT ln (V₂/V₁)
(C) nkB In (V₂/V₁)
(D) nk_BT In (V₂/V₁)
(E) nk_B (V₂-V₁.)