来自石邹玲的问题
己知:HCN(aq)与NaOH(aq)反应的△H=-12.1kJ/moL;HCl(aq)与NaOH(aq)反应的△H=-55.6kJ/moL.则HCN在水溶液中电离的△H等于()A.-67.7kJ/moLB.-43.5kJ/moLC.+43.5kJ/moLD.+67.7kJ/moL
己知:HCN(aq)与NaOH(aq)反应的△H=-12.1kJ/moL;HCl(aq)与NaOH(aq)反应的△H=-55.6kJ/moL.则HCN在水溶液中电离的△H等于()
A.-67.7kJ/moL
B.-43.5kJ/moL
C.+43.5kJ/moL
D.+67.7kJ/moL
1回答
2020-10-2712:58