反应热练习题(共3页).doc

精选优质文档-倾情为你奉上反应热部分练习题1已知：C(s)H2O(g)CO(g)H2(g) HakJmol12C(s)O2(g)2CO(g) H220kJmol1HH、OO和OH键的键能分别为436、496和462kJmol1,则a为A130 B118 C350 D3322已知：Fe2O3(s)+ 3/2C(s)= 3/2CO2(g)+2Fe(s) H= +234.1 kJ/molC(s)+O2(g)=CO2(g) H= -393.5 kJ/mol则反应2Fe(s)+ 3/2O2(g)=Fe2O3(s)的H是A-169.4 kJ/mol B-627.6 kJ/molC-744.7 kJ/mo D-824.4 kJ/mol3室温下，将1mol的CuSO45H2O(s)溶于水会使溶液温度降低，热效应为H1