單項(xiàng)選擇題已知下列反應(yīng)的平衡常數(shù):H2(g)+S(s)=H2S(g)K1S(s)+O2(g)=SO2(g)K2則反應(yīng)H2(g)+SO2(g)=O2(g)+H2S(g)的平衡常數(shù)為:()

A.K1+K2
B.K1-K2
C.K1K2
D.K1/K2


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