已知充分燃烧ag乙炔气体时生成1mol二氧化碳气体和液态水,并放出热量bkj,则乙炔燃烧的热化学方程式正确是A.2C2H2(g)+5O2(g)=4CO2(g)+2H2O(l)△H=-2bkj/molB.C2H2(g)+5/2O2(g)=2CO2(g)+H2O(l) △H=2
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![已知充分燃烧ag乙炔气体时生成1mol二氧化碳气体和液态水,并放出热量bkj,则乙炔燃烧的热化学方程式正确是A.2C2H2(g)+5O2(g)=4CO2(g)+2H2O(l)△H=-2bkj/molB.C2H2(g)+5/2O2(g)=2CO2(g)+H2O(l) △H=2](/uploads/image/z/150486-6-6.jpg?t=%E5%B7%B2%E7%9F%A5%E5%85%85%E5%88%86%E7%87%83%E7%83%A7ag%E4%B9%99%E7%82%94%E6%B0%94%E4%BD%93%E6%97%B6%E7%94%9F%E6%88%901mol%E4%BA%8C%E6%B0%A7%E5%8C%96%E7%A2%B3%E6%B0%94%E4%BD%93%E5%92%8C%E6%B6%B2%E6%80%81%E6%B0%B4%2C%E5%B9%B6%E6%94%BE%E5%87%BA%E7%83%AD%E9%87%8Fbkj%2C%E5%88%99%E4%B9%99%E7%82%94%E7%87%83%E7%83%A7%E7%9A%84%E7%83%AD%E5%8C%96%E5%AD%A6%E6%96%B9%E7%A8%8B%E5%BC%8F%E6%AD%A3%E7%A1%AE%E6%98%AFA.2C2H2%EF%BC%88g%EF%BC%89%2B5O2%EF%BC%88g%EF%BC%89%3D4CO2%EF%BC%88g%EF%BC%89%2B2H2O%EF%BC%88l%EF%BC%89%E2%96%B3H%3D-2bkj%2FmolB.C2H2%28g%EF%BC%89%2B5%2F2O2%EF%BC%88g%29%3D2CO2%28g%29%2BH2O%28l%EF%BC%89++%E2%96%B3H%3D2)
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