申論題

1. (a) A Carnot engine contains 0.250 mol of a monatomic ideal gas as its working fluid. Assume C, to be constant. If T_h = 473 K, T_c= 373 K, V₁ = 0.600 L, and if the compression ratio V₃/V₁ = 6.00, find the efficiency and calculate w, q, and entropy change for each of the steps in the cycle. (b) Calculate △U, △H and△S for the whole cycle. (20%)