问题
选择题
将H2和Br2充入恒容密闭容器，恒温下发生反应H2(g)+Br2(g)
2HBr(g) △H＜0。平衡时Br2(g)的转化率为a；若初始条件相同，在绝热条件下进行上述反应（反应体系与），平衡时Br2(g)的转化率为b。a与b的关系是 [ ]
A．a＞b
B．a=b
C．a＜b
D．无法确定
答案
答案：A
搜题请搜索小程序“爱下问搜题”
将H2和Br2充入恒容密闭容器，恒温下发生反应H2(g)+Br2(g)2HBr(g) △H＜0。平衡时Br2(g)的转化率为a；若初始条件相同，在绝热条件下进行上述反应（反应体系与），平衡时Br2(g)的转化率为b。a与b的关系是 [ ]
A．a＞b
B．a=b
C．a＜b
D．无法确定
答案：A
| 阅读理解。 | ||||||||||
| Dear Victoria, How's it going? Things are fine here. Next Saturday, John and Sandy will come to my house for dinner. But I don't know how to cook. What should I do. John likes apples and Sandy likes bananas and watermelons. They both like something sweet. I want to make something delicious they like. Can you tell me what kind of food I can make? Please try to help me! Please think over and write to me soon! Best wishes! Yours, Linda | ||||||||||
Information Card | ||||||||||
|