问题
选择题
| 在密闭容器中发生下列反应aA（g）⇌cC（g）+dD（g），反应达到平衡后，将容器体积压缩到原来的一半，当再次达到平衡时，D的浓度为原平衡的1.8倍，下列叙述正确的是( ) A．平衡向正反应方向移动 B．A的转化率变大 C．C的体积分数变大 D．a＜c+d |
答案
答案：D
搜题请搜索小程序“爱下问搜题”
| 在密闭容器中发生下列反应aA（g）⇌cC（g）+dD（g），反应达到平衡后，将容器体积压缩到原来的一半，当再次达到平衡时，D的浓度为原平衡的1.8倍，下列叙述正确的是( ) A．平衡向正反应方向移动 B．A的转化率变大 C．C的体积分数变大 D．a＜c+d |
答案：D
| 阅读理解。 | ||||||||||||
| This is my family. My grandpa's name is Harry Brown. My grandma's name is Jean Brown. My father's name is Jeff Brown. My mother's name is Helen Brown. Jeff and Helen are my parents. I have a sister. Her name is Kate Brown. My name is Tom Brown. I'm ten. My sister is eight. | ||||||||||||
| (A). 阅读短文，将人名及其身份填在表中相应方框内。 | ||||||||||||
| ||||||||||||
| (B). 根据短文内容，回答下列问题。 | ||||||||||||
| 6. How old is Tom Brown? _______________________. 7. Is that girl his sister? _______________________. 8. Is Helen Brown his grandmother? _______________________. 9. What's his grandmother's name? _______________________. 10. Is Jeff Brown his brother? _______________________. |