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【单选题】
对于反应 2Cl 2 (g)+2H 2 O(g)=4HC1(g)+O 2 (g)的Δ r H m Ө <0,将H 2 O(g),HCl(g),Cl 2 (g)、O 2 (g)混合并在反应达到平时,下列操作平不发生移动的是()A.
增加容器体积
B.
降低体系温度
C.
加入氧气
D.
加催化剂
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