100g碳燃烧所得气体中,CO占1/3体积,CO2占2/3体积,且C(s)+ 1
题型:选择题
问题:
100g碳燃烧所得气体中,CO占1/3体积,CO2占2/3体积,且C(s)+ 1/2O2(g)CO(g) ΔH=-110.35kJ·mol-1,CO(g)+ 1/2O2(g)CO2(g) ΔH=-282.57kJ·mol-1。与这些碳完全燃烧相比较,损失的热量是( )
A.392.92kJ
B.2489.44kJ
C.784.92kJ
D.3274.3kJ
100g碳燃烧所得气体中,CO占1/3体积,CO2占2/3体积,且C(s)+ 1/2O2(g)CO(g) ΔH=-110.35kJ·mol-1,CO(g)+ 1/2O2(g)CO2(g) ΔH=-282.57kJ·mol-1。与这些碳完全燃烧相比较,损失的热量是( )
A.392.92kJ
B.2489.44kJ
C.784.92kJ
D.3274.3kJ