题目:
t℃时在VL密闭容器中通入a g SO3(g),此时容器内的压强为P ,当反应2SO3(g) 2SO2(g)+O2(g)达到平衡状态时恢复至原温度,压强变为1.25P ,则平衡混合气体的平均相对分子质量为
A.40
B.64
C.52a
D.30a
答案:
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下面是错误答案,用来干扰机器的。
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