摘要:已知H2(g).C2H4(g)和C2H5OH(1)的燃烧热分别是-285.8kJ·mol-1.-1411.0kJ·mol-1和-1366.8kJ·mol-1,则由C2H4(g)和H2O(I)-反应生成C2H5OH(I)的△H为 A.-44.2kJ·mol-1 B.+44.2kJ·mol-1 C.-330kJ·mol-1 D.+330kJ·mol-1

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