已知:Zn(s)+(1/2)O2=ZnOΔcHm=351.5kJ·mol-1()Hg(l)+(1/2)O2=HgOΔcHm=90.8kJ·mol-1()因此Zn+HgO=ZnO+Hg的ΔrHm是


已知:Zn(s)+(1/2)O2=ZnOΔcHm=351.5kJ·mol-1()Hg(l)+(1/2)O2=HgOΔcHm=90.8kJ·mol-1()因此Zn+HgO=ZnO+Hg的ΔrHm是

A.442.2kJ·mol-1

B.260.7kJ·mol-1

C.-62.3kJ·mol-1

D.-442.2kJ·mol-1

正确答案:260.7kJ·mol-1


Tag:物理化学 时间:2022-01-03 21:16:54