题目内容

1 mol理想气体在气缸中进行无限缓慢的膨胀，其体积由V1变到V2．当气缸处于绝热情况下时，以下关于理想气体熵的增量△S 说法正确的是： [ ]

A. △S >0
B. △S <0
C. △S=0
D. 以上说法都不对

查看答案

搜索结果不匹配？点我反馈

更多问题

一卡诺热机从327℃的高温热源吸热，向27℃的低温热源放热。若该机从高温热源吸收l000J的热量，则该机所作的功W＝ J，放出热量Q2＝ J 。

A , often called hong niang in China, is a of love.

A. matchmaker(媒人); messenger
B. messenger; matchmaker

下划线的部分如何翻译，请选择正确答案。Once you are selected as zhuang yuan you will be appreciated by the Emperor and appear in parade downtown with a red robe and a tall, strong horse.

A. 受到皇帝的赏识；列队出现在市中心；伴有红袍和大马
B. 受到皇帝的夸赞；在城里游行；伴随着红裙和又高又壮的马
C. 受到皇帝的赏识；在城里游行；穿红袍；骑大马

There are two heroes in Chinese history: _and.

A. Yellow Emperor
B. Yan Emperor
C. Huang Enperor