题目

一定条件下，在体积为10 L的密闭容器中，1 mol A和1 mol B进行反应： 2A(g)＋B(g)2C(g)，达到平衡时生成0.6 mol C。下列说法正确的是 A．当容器内密度保持不变时，可以判断反应已达平衡 B．其他条件不变，将容器体积变为20 L，C的平衡浓度变为原来的一半 C．其他条件不变，若增大压强，则物质A的转化率减小 D．达到平衡时，C的体积百分含量为0.353听短文 ,根据短文内容选择佳答案 。    1. The writer sat           Mrs White at the dinner party.A. next to              B. opposite to                      C. far from2. The writer asked questions because                .A. he wanted to know if Mrs. White was going abroadB. he wanted to be friendlyC. he always talked too much3.The Globe must be a          .A. night club           B. theater                  C. play4. Which word best describes Mrs White?A. Hungry.             B. Rude.                  C. Polite.5. Did Mrs White like the young man?A. No, she didn't.      B. Yes, she did.           C. I don't know.