已知2H2(g)+O2=2H2O(l)△H=-571.6kJ/mol,CO(g)+1/2O2(g)=-285.8kJ/mol现有CO、H2和CO2组成的混合气体67.2L(标况)经完全燃烧后放出的总热量为710.1kJ,并生成18g水,则原混合气体中CO的体积分数为A 80% B 50% C 60% D 2
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![已知2H2(g)+O2=2H2O(l)△H=-571.6kJ/mol,CO(g)+1/2O2(g)=-285.8kJ/mol现有CO、H2和CO2组成的混合气体67.2L(标况)经完全燃烧后放出的总热量为710.1kJ,并生成18g水,则原混合气体中CO的体积分数为A 80% B 50% C 60% D 2](/uploads/image/z/4737687-15-7.jpg?t=%E5%B7%B2%E7%9F%A52H2%28g%29%2BO2%3D2H2O%28l%29%E2%96%B3H%3D-571.6kJ%2Fmol%2CCO%28g%29%2B1%2F2O2%28g%29%3D-285.8kJ%2Fmol%E7%8E%B0%E6%9C%89CO%E3%80%81H2%E5%92%8CCO2%E7%BB%84%E6%88%90%E7%9A%84%E6%B7%B7%E5%90%88%E6%B0%94%E4%BD%9367.2L%EF%BC%88%E6%A0%87%E5%86%B5%EF%BC%89%E7%BB%8F%E5%AE%8C%E5%85%A8%E7%87%83%E7%83%A7%E5%90%8E%E6%94%BE%E5%87%BA%E7%9A%84%E6%80%BB%E7%83%AD%E9%87%8F%E4%B8%BA710.1kJ%2C%E5%B9%B6%E7%94%9F%E6%88%9018g%E6%B0%B4%2C%E5%88%99%E5%8E%9F%E6%B7%B7%E5%90%88%E6%B0%94%E4%BD%93%E4%B8%ADCO%E7%9A%84%E4%BD%93%E7%A7%AF%E5%88%86%E6%95%B0%E4%B8%BAA+80%25+B+50%25+C+60%25+D+2)
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