已知下列热化学方程式:Zn(s)+1/2O2(l)=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(l)=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 |