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【单选题】
已知: SnO 2 ( s ) +2CO=Sn ( s ) +2CO 2 ,平衡常数为 K 1 ; SnO 2 ( s)=Sn(s)+O 2 (g), 平衡常数为 K 2 ;则 2CO 2 =2CO ( g ) +O 2 ( g )的平衡常数 K 3 为( ) A: K 3 =K 1 ×K 2 B: K 3 =K 1 /K 2 C: K 3 =K 2 /K 1 D: K 3 =K 2 +K 1A.
B.
C.
D.
D
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举一反三
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That's all right
B.
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No， it was my fault
D.
Yes， don't worry about it
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A.
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B.
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