已知:(1)Zn(s) + 1/2O2(g) = ZnO(s) ΔH =" -350" kJ·mol-1
(2)2Ag(s) + 1/2O2(g) = Ag2O(s) ΔH =" -25" kJ·mol-1
则Zn(s) + Ag2O(s) =" ZnO(s)" + 2Ag(s)的ΔH等于
A.-375 kJ·mol-1 | B.-325 kJ·mol-1 |
C.+375 kJ·mol-1 | D.+325 kJ·mol-1 |
已知:(1)Zn(s) + 1/2O2(g) = ZnO(s) ΔH =" -350" kJ·mol-1
(2)2Ag(s) + 1/2O2(g) = Ag2O(s) ΔH =" -25" kJ·mol-1
则Zn(s) + Ag2O(s) =" ZnO(s)" + 2Ag(s)的ΔH等于
A.-375 kJ·mol-1 | B.-325 kJ·mol-1 |
C.+375 kJ·mol-1 | D.+325 kJ·mol-1 |