摘要：8． 25℃.101 kPa下.CO.HCOOH.CH4和CH3OH的燃烧热依次是67.6 kJ/mol.62.8kJ/mol.890.3 kJ/mol.726kJ/mol.则下列热化学方程式不正确的是( ) A．CO(g)+O2(g)＝CO2(g),DH＝-67.6 kJ/mol B．HCOOH(1)+O2(g)＝CO2(g)+H2O(1),DH＝-62.8 kJ/mol C．CH4g)+2O2(g)＝CO2(g)+2H2O(g),DH＝-890.3 kJ/mol D．2CH3OH(l)+3O2(g)＝2CO2(g)+4H2O(l),DH＝-1452 kJ/mol
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25℃、101 kPa下，CO、HCOOH、CH4和CH3OH的燃烧热依次是67.6 kJ/mol、62.8kJ/mol、890.3 kJ/mol、726kJ/mol，则下列热化学方程式不正确的是( )
A．CO(g)＋O2(g)＝CO2(g)；DH＝－67.6 kJ/mol
B．HCOOH(1)＋O2(g)＝CO2(g)＋H2O(1)；DH＝－62.8 kJ/mol
C．CH4g)＋2O2(g)＝CO2(g)＋2H2O(g)；DH＝－890.3 kJ/mol
D．2CH3OH(l)＋3O2(g)＝2CO2(g)＋4H2O(l)；DH＝－1452 kJ/mol
查看习题详情和答案>>25℃、101 kPa下，CO、HCOOH、CH4和CH3OH的燃烧热依次是67.6 kJ/mol、62.8kJ/mol、890.3 kJ/mol、726kJ/mol，则下列热化学方程式不正确的是( )
| A．CO(g)＋O2(g)＝CO2(g)；DH＝－67.6 kJ/mol |
| B．HCOOH(1)＋O2(g)＝CO2(g)＋H2O(1)；DH＝－62.8 kJ/mol |
| C．CH4g)＋2O2(g)＝CO2(g)＋2H2O(g)；DH＝－890.3 kJ/mol |
| D．2CH3OH(l)＋3O2(g)＝2CO2(g)＋4H2O(l)；DH＝－1452 kJ/mol |