已知:2Zn(s)+O2(g)="==2ZnO(s)" ΔH=-701.0 kJ·mol-1
2Hg(l)+O2(g)="==2HgO(s)" ΔH=-181.6 kJ·mol-1
则反应Zn(s)+ HgO(s)===ZnO(s)+ Hg(l)的ΔH为( )
A.+519.4 kJ·mol-1 | B.+259.7 kJ·mol-1 |
C.-259.7 kJ·mol-1 | D.-519.4 kJ·mol-1 |
已知:2Zn(s)+O2(g)="==2ZnO(s)" ΔH=-701.0 kJ·mol-1
2Hg(l)+O2(g)="==2HgO(s)" ΔH=-181.6 kJ·mol-1
则反应Zn(s)+ HgO(s)===ZnO(s)+ Hg(l)的ΔH为( )
A.+519.4 kJ·mol-1 | B.+259.7 kJ·mol-1 |
C.-259.7 kJ·mol-1 | D.-519.4 kJ·mol-1 |