已知:(1)Zn(s)+1/2O2(g)==ZnO(s),ΔH=-348.3kJ/mol (2)...
问题详情:
已知:(1)Zn(s)+1/2O2(g)==ZnO(s),ΔH = -348.3kJ/mol
(2)2Ag (s)+1/2 O2(g)== Ag2O(s),ΔH = -31.0kJ/mol
则Zn(s)+ Ag2O(s) == ZnO(s) + 2Ag(s) 的ΔH等于( )
A.-317.3 kJ/mol B.-379.3 kJ/mol C.-332.8 kJ/mol D.317.3 kJ/mol
【回答】
A
知识点:燃烧热和中和热
题型:选择题