已知下列热化学方程式:
Zn(s)+1/2O2(g)=ZnO(s) △H =-351.1KJ/mol
Hg(l)+1/2O2(g)=HgO(s) △H =-90.7KJ/mol
由此可知,Zn(s)+HgO(s)= ZnO(s)+Hg(l) 的△H 为 ( )
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) △H =-351.1KJ/mol
Hg(l)+1/2O2(g)=HgO(s) △H =-90.7KJ/mol
由此可知,Zn(s)+HgO(s)= ZnO(s)+Hg(l) 的△H 为 ( )
A.-441.8KJ/mol | B.-254.6KJ/mol |
C.-438.9KJ/mol | D.-260.4KJ/mol |