A.C2H5OH(l)+3O2(g)==2CO2(g)+3H2O(g);△H=-1367.0 kJ/mol(燃烧热) B.NaOH(aq)+HCl(aq)==NaCl(aq)+H2O(l);△H=+57.3kJ/mol(中和热)C.S(s)+O2(g)===SO2(g);△H=-269.8kJ/mol(反应热)D.2NO2==O2+2NO;△H=+116.2kJ/mol(反应热)
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