摘要：11．下列热化学方程式中△H表示可燃物燃烧热的是 ( ) A．C(s) + 1/2 O2 △H= -110.5 kJ/mol B．2H2(g) + O2(g) = 2H2O(l) △H= -571.6kJ/mol C．CH4(g) + 2O2(g) = CO2(g) + 2H2O(g) △H=-802.3kJ/mol D．CO(g) + 1/2 O2(g) = CO2(g) △H= -283.0kJ/mol
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下列热化学方程式中ΔH表示可燃物燃烧热的是
A．C(s)＋1/2O2(g)=CO(g) ΔH=-110.5kJ/mol
B．2H2(g)＋O2(g)=2H2O(g) ΔH=-571.6kJ/mol
C．CH4(g)＋2O2(g)=CO2(g)＋2H2O(g) ΔH=-890.3kJ/mol
D．C6H12O6(s)+6O2(g)=6CO2(g)+6H2O(l) ΔH=-2800kJ/mol
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下列热化学方程式中ΔH表示可燃物燃烧热的是
| A．C(s)＋1/2O2(g)="CO(g)" ΔH=-110.5kJ/mol |
| B．2H2(g)＋O2(g)=2H2O(g)ΔH=-571.6kJ/mol |
| C．CH4(g)＋2O2(g)=CO2(g)＋2H2O(g) ΔH=-890.3kJ/mol |
| D．C6H12O6(s)+6O2(g)=6CO2(g)+6H2O(l)ΔH=-2800kJ/mol |