11.已知H2(g).C2H4(g)和C2H5OH(1)的燃燒熱分別是-285.8kJ·mol-1.-1411.0kJ·mol-1和-1366.8kJ·mol-1,則由C2H4(g)和H2O(l)反應(yīng)生成C2H5OH A.-44.2kJ·mol-1 B.+44.2kJ·mlo-1 C.-330kJ·mol-1 D.+330kJ·mlo-1 查看更多

 

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(08寧夏卷) 已知H2(g)、C2H4(g)和C2H5OH(1)的燃燒熱分別是-285.8kJ?mol-1、-1411.0kJ?mol-1和-1366.8kJ mol-1,則由C2H4(g)

 

和H2O(l)反應(yīng)生成C2H5OH(l)的△H為()

 

  A.-44.2 kJ?mol-1                                                     B.+44.2 kJ?mol-1

  C.-330 kJ?mol-1                                                       D.+330 kJ?mol-1

 

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