题目: — Excuse me. Where is Class Three? — _____. I'm a student in Class Three. [ ]A. Keep waiting B. Come this way C. Quiet, please D. Don't mention it. 答案: 答案:B
题型:单项选择题 反应PCl3(g)+Cl2(g)PC5(g),在298K时,,此温度下平衡时,如p(PCl5)=p(PCl3),则p(Cl2)=()。A.130.38kPaB.0.767kPaC.7607kPaD.7.67×10-3kPa 查看答案