河北省大名县一中2018_2019学年高二化学上学期周测试题一.doc

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1 -河北省大名县一中 2018-2019 学年高二化学上学期周测试题一一、选择题 1. 在一定条件下,N 2 与 H 2 发生如下反应:N 2 + 3H 2 2NH 3 ,影响该反应速率的最主要因素( )A浓度 B温度 CN 2 和 H 2 的性质 D催化剂 2. 下列说法正确的是( ) A能自发进行的反应一定能迅速发生反应 B非自发进行的反应一定不可能发生反应 C能自发进行的反应实质可能没有发生反应 D常温下,2H 2 O 2 H 2 O 2 ,即常温下水的分解反应是自发反应3. 在一定条件下,当单独改变可逆反应:N 2 (g)3H 2 (g) 2NH 3 (g) H0,所有温度下反应自发进行 BH 0,S0,所有温度下反应自发进行 CH 0,S (2) 减小; 增大 (3)B (4)=

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