試題詳解

13. A cylinder has insulating walls and is divided into two parts by a frictionless insulating piston. Initially, the two parts have equal volumes V₀, equal temperatures To and equal pressure P₀. The gas is ideal with Cv = R, Cp = . A small heating bar is now inserted on the left part and heat is supplied slowly to the gas on the left until its pressure reaches 32P₀. As a result, the left part will expand and the right part will be compressed. How much heat is supplied to the gas on the left part?
(A) 32 P₀V₀
(B) PoVo
(C) P₀V₀
(D) 59 P₀V₀
(E) 93 P₀V₀