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反应 (1)CoO(s) + CO(g)→Co(s) + CO 2 (g) (2) CO 2 (g) + H 2 (g)→CO(g) + H 2 O(l) (3) H 2 O(l)→H 2 O(g) 的平衡常数各为 K 1 、 K 2 和 K 3 。则反应 CoO(s)+ H 2 (g)→Co(s)+ H 2 O(g) 的 K 为() A. K 1 + K 2 + K 3 B. K 1 - K 2 - K 3 C. K 1 K 2 K 3 D. K 1 K 3 / K 2
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