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已知:2Zn(s)+O2(g)=2ZnO(s)△H=-701.0kJ/mol2Hg(l)+O2(g)=2HgO(s)△H=-181.6kJ/mol,则反应:Zn(s)+HgO(s)=ZnO(s)+Hg(l)的△H为[]A.+519.4kJ/molB.+259.7kJ/molC.-259.7kJ/molD.-519.4
题目详情
已知:2Zn(s)+O 2 (g)=2ZnO(s) △H= -701.0kJ/mol 2Hg(l)+O 2 (g)=2HgO(s) △H= -181.6kJ/mol,则反应:Zn(s)+ HgO(s)=ZnO(s)+ Hg(l)的△H为 |
[ ] |
A .+519.4kJ/mol |
已知:2Zn(s)+O 2 (g)=2ZnO(s) △H= -701.0kJ/mol 2Hg(l)+O 2 (g)=2HgO(s) △H= -181.6kJ/mol,则反应:Zn(s)+ HgO(s)=ZnO(s)+ Hg(l)的△H为 |
[ ] |
A .+519.4kJ/mol |
[ ]
A .+519.4kJ/mol
B .+259.7 kJ/mol
C .-259.7 kJ/mol
D .-519.4kJ/mol
[ ]
[ ]
[ ]
A .+519.4kJ/mol
B .+259.7 kJ/mol
C .-259.7 kJ/mol
D .-519.4kJ/mol
A .+519.4kJ/mol
B .+259.7 kJ/mol
C .-259.7 kJ/mol
D .-519.4kJ/mol
A .+519.4kJ/mol
B .+259.7 kJ/mol
C .-259.7 kJ/mol
D .-519.4kJ/mol
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答案和解析
D D D D
D |
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