已知下列热化学方程式:
Zn(s) + 1/2 O2(g)= ZnO(s) ΔH =" -351.1" kJ·mol-1
Hg(l) + 1/2 O2(g)= HgO(s) ΔH =" -90.7" kJ·mol-1
由此可知Zn(s)+ HgO(s)= ZnO(s)+ Hg(l)的反应热ΔH为
A.-260.4 kJ·mol-1 | B.+260.4 kJ·mol-1 | C.- 441.8 kJ·mol-1 | D.+ 441.8 kJ·mol-1 |
已知下列热化学方程式:
Zn(s) + 1/2 O2(g)= ZnO(s) ΔH =" -351.1" kJ·mol-1
Hg(l) + 1/2 O2(g)= HgO(s) ΔH =" -90.7" kJ·mol-1
由此可知Zn(s)+ HgO(s)= ZnO(s)+ Hg(l)的反应热ΔH为
A.-260.4 kJ·mol-1 | B.+260.4 kJ·mol-1 | C.- 441.8 kJ·mol-1 | D.+ 441.8 kJ·mol-1 |