下列有关平衡常数的说法正确的是(    )A.已知 ,则对应的化学

下列有关平衡常数的说法正确的是(    )

A.已知 ,则对应的化学反应可以表示为:

2CO2( g) + 6H2(g) CH3CH2OH(g)+ 3H2O(g)

B.将某浓度氢氟酸溶液升高温度,氢氟酸的电离平衡常数Ka将变大

C.常温下,向纯水中加入碳酸钠,水的电离程程度变大,Kw变大

D.化学平衡常数K与温度有关,随温度的升高,K可能增大也可能减小,或者不变

 

答案

B

解析:略

 

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