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1.
(2023高二上·吉林月考)
在25 ℃、101 kPa下,碳、氢气、甲烷和葡萄糖的摩尔燃烧焓依次是393.5 kJ/mol、285.8 kJ/mol、890.3 kJ/mol、2 800 kJ/mol,则下列热化学方程式正确的是( )
A . C(s)+O2(g)=CO(g) ΔH=-393.5 kJ/mol
B . CH4(g)+2O2(g)=CO2(g)+2H2O(l) ΔH=-890.3 kJ/mol
C . 2H2(g)+O2(g)=2H2O(l) ΔH=+571.6 kJ/mol
D . C6H12O6(s)+3O2(g)=3CO2(g)+3H2O(g) ΔH=-1 400 kJ/mol
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