已知:H2O(g)===H2O(l) ΔH1=-Q1kJ·mol-1 C2H5OH(g)===C2H5OH(l) ΔH2=-Q2kJ·mol-1 C2H5OH(g)+3O2(g)===2CO2(g)+3H2O(g) ΔH3=-Q3kJ·mol-1 若使32g液态甲醇完全燃烧,最后恢复到室温,则放出的热量为
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![已知:H2O(g)===H2O(l) ΔH1=-Q1kJ·mol-1 C2H5OH(g)===C2H5OH(l) ΔH2=-Q2kJ·mol-1 C2H5OH(g)+3O2(g)===2CO2(g)+3H2O(g) ΔH3=-Q3kJ·mol-1 若使32g液态甲醇完全燃烧,最后恢复到室温,则放出的热量为](/uploads/image/z/2217651-51-1.jpg?t=%E5%B7%B2%E7%9F%A5%EF%BC%9AH2O%28g%29%3D%3D%3DH2O%28l%29%E3%80%80%CE%94H1%EF%BC%9D%EF%BC%8DQ1kJ%C2%B7mol%EF%BC%8D1+C2H5OH%28g%29%3D%3D%3DC2H5OH%28l%29%E3%80%80%CE%94H2%EF%BC%9D%EF%BC%8DQ2kJ%C2%B7mol%EF%BC%8D1+C2H5OH%28g%29%EF%BC%8B3O2%28g%29%3D%3D%3D2CO2%28g%29%EF%BC%8B3H2O%28g%29+%CE%94H3%EF%BC%9D%EF%BC%8DQ3kJ%C2%B7mol%EF%BC%8D1+%E8%8B%A5%E4%BD%BF32g%E6%B6%B2%E6%80%81%E7%94%B2%E9%86%87%E5%AE%8C%E5%85%A8%E7%87%83%E7%83%A7%2C%E6%9C%80%E5%90%8E%E6%81%A2%E5%A4%8D%E5%88%B0%E5%AE%A4%E6%B8%A9%2C%E5%88%99%E6%94%BE%E5%87%BA%E7%9A%84%E7%83%AD%E9%87%8F%E4%B8%BA)
已知:H2O(g)===H2O(l) ΔH1=-Q1kJ·mol-1 C2H5OH(g)===C2H5OH(l) ΔH2=-Q2kJ·mol-1 C2H5OH(g)+3O2(g)===2CO2(g)+3H2O(g) ΔH3=-Q3kJ·mol-1 若使32g液态甲醇完全燃烧,最后恢复到室温,则放出的热量为
已知:H2O(g)===H2O(l) ΔH1=-Q1kJ·mol-1 C2H5OH(g)===C2H5OH(l) ΔH2=-Q2kJ·mol-1 C2H5OH(g)+3O2(g)===2CO2(g)+3H2O(g) ΔH3=-Q3kJ·mol-1 若使32g液态甲醇完全燃烧,最后恢复到室温,则放出的热量为
已知:H2O(g)===H2O(l) ΔH1=-Q1kJ·mol-1 C2H5OH(g)===C2H5OH(l) ΔH2=-Q2kJ·mol-1 C2H5OH(g)+3O2(g)===2CO2(g)+3H2O(g) ΔH3=-Q3kJ·mol-1 若使32g液态甲醇完全燃烧,最后恢复到室温,则放出的热量为
你还真打出来了
C2H5OH(l)+3O2(g)=2CO2(g)+3H2O(g),△H2= -Q2kj/mol
3H2O(g)=3H2O(l),△H1= -3Q1kj/mol,
C2H5OH(l)+3O2(g)=2CO2(g)+3H2O(l) △H(total)=(-Q2-3Q1)kj/mol
46
23 △H
△H...
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C2H5OH(l)+3O2(g)=2CO2(g)+3H2O(g),△H2= -Q2kj/mol
3H2O(g)=3H2O(l),△H1= -3Q1kj/mol,
C2H5OH(l)+3O2(g)=2CO2(g)+3H2O(l) △H(total)=(-Q2-3Q1)kj/mol
46
23 △H
△H=(-Q2-3Q1)kj/mol*23/46=(-Q2-3Q1)/2kj/mol
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