已知 CH4(g)+2O2(g)===2H2O(l)+CO2(g) ΔH=-890kj.mol-1
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已知 CH4(g)+2O2(g)===2H2O(l)+CO2(g) ΔH=-890kj.mol-1
现有ch4和co的混合气体共0.75mol,完全燃烧生成气体和18g液态水放出515热量,则co燃烧的热化学方程式.
现有ch4和co的混合气体共0.75mol,完全燃烧生成气体和18g液态水放出515热量,则co燃烧的热化学方程式.
![已知 CH4(g)+2O2(g)===2H2O(l)+CO2(g) ΔH=-890kj.mol-1](/uploads/image/z/16251977-65-7.jpg?t=%E5%B7%B2%E7%9F%A5+CH4%28g%29%2B2O2%28g%29%3D%3D%3D2H2O%28l%29%2BCO2%28g%29+%CE%94H%3D-890kj.mol-1)
生成1molH2O,有0.5molCH4,0.25molCO,则CO放出的热量为 515-890*0.5=70KJ
所以1molCO燃烧放出热量为70*4=280KJ
故CO(g)+ 0.5 O2 =CO2,ΔH=-280KJ.mol-1
所以1molCO燃烧放出热量为70*4=280KJ
故CO(g)+ 0.5 O2 =CO2,ΔH=-280KJ.mol-1
求详解.已知CH4(g)+2O2(g)=CO2(g)+2H2O(l);ΔH=-890 kJ·mol-1,现有CH4和CO
已知:CH4(g)+2O2(g)=CO2(g)+2H2O(l)△H=-890.3 KJ*mol-1H2(g)+0.5O2
已知2H2(g)+O2(g)==2H2O(l) △H=-571.6KJ/mol CH4(g)+2O2(g)==CO2(g
已知:2H2(g)+O2(g)=2H2O(l) △H=-571.6KJ/mol CH4(g)+2O2(g)=CO2(g)
已知2H2O(L)=2H2(g)+O2(g) △H=+571.6kJ/mol CH4(g)+2O2(g)=CO2(g)+
已知CH4(g)+2O2(g)==CO2(g)+2H2O(l); △H=-890kJ/mol 现有CH4和CO的混合气体
已知 CH4(g)+2O2(g)===2H2O(l)+CO2(g) ΔH=-890.3kj.mol-1求1gH2和1gC
(1)CH4(g)+2O2(g)=CO2(g)+2H2O(l),△H1=-890.3kj/mol
已知:2H2(g)+O2(g)═2H2O(l)△H=-571.6kJ•mol-1;CH4(g)+2O2(g)═CO2(g
已知2H2(g)+O2(g)=2H2O(l);△H=-571.6kJ/mol,C3H8(g)+5O2(g)=3CO2(g
已知:CH4(g)+2O2(g)=CO2(g)+2H2O(g) ΔH=-Q1 kJ/mol,2H2(g)+O2(g)==
已知:CH4(g)+2O2(g)═CO2(g)+2H2O(l);△H=-Q1kJ•mol-1,