已知下列热化学方程式:Zn(s)+1/2O2(g)=ZnO(s)ΔH1="-351.1" kJ/mol
Hg(l)+1/2O2(g)=HgO(s) ΔH2=" -90.7" kJ/mol 。由此可知:
Zn(s)+HgO(s)= ZnO(s)+Hg(l)△H3。其中△H3的值是
A.-441.8kJ/mol | B.-254.6kJ/mol | C.-438.9kJ/mol | D.-260.4kJ/mol |
已知下列热化学方程式:Zn(s)+1/2O2(g)=ZnO(s)ΔH1="-351.1" kJ/mol
Hg(l)+1/2O2(g)=HgO(s) ΔH2=" -90.7" kJ/mol 。由此可知:
Zn(s)+HgO(s)= ZnO(s)+Hg(l)△H3。其中△H3的值是
A.-441.8kJ/mol | B.-254.6kJ/mol | C.-438.9kJ/mol | D.-260.4kJ/mol |