問題詳情
21. An ideal gas in a balloon is kept in thermal equilibrium with its constant-temperature surroundings.How much work is done by the gas if the outside pressure is slowly reduced, allowing the balloon toexpand to 6.0 times its original size? The balloon initially has a pressure of 645.0 Pa and a volume of0.1 m3. The ideal gas constant is R = 8.314 J/mol ㆍ K.
(A) 60 J
(B) 115 J
(C) 160 J
(D) 200 J
(E) 250 J.
參考答案
答案：B
難度：計算中-1
書單：沒有書單，新增