运用相关化学知识进行判断,下列结论错误的是( ) A.某吸热反应能

运用相关化学知识进行判断,下列结论错误的是(  )

A.某吸热反应能自发进行,因此该反应是熵增反应

BNH4F水溶液中含有HF,因此NH4F溶液不能存放于玻璃试剂瓶中

C.可燃冰主要是甲烷与水在低温高压下形成的水合物晶体,因此可存在于海底

D.增大反应物浓度可加快反应速率,因此用浓硫酸与铁反应能增大生成H2的速率

答案

D [解析] ΔHTΔS0时,反应能自发进行,吸热反应的ΔH0,吸热反应能自发,说明ΔS0A项正确;NH4F溶液中F水解生成HFHF能与玻璃中的SiO2发生反应4HFSiO2===SiF42H2O,故NH4F溶液不能存放在玻璃试剂瓶中,B项正确;可燃冰需在低温高压下形成,所以可燃冰可存在于海底,C项正确;常温下,浓硫酸使铁发生钝化,D项错误。

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