写出298K时,下列反应的热化学方程式3molNO2(g)与1molH2O(l)反应生成HNO3(aq)和NO(g),放热138KJ.答案是3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-138KJ/mol还是3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-414KJ/mol或3NO2(g)+H2O(L)===2HNO3(aq)+
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![写出298K时,下列反应的热化学方程式3molNO2(g)与1molH2O(l)反应生成HNO3(aq)和NO(g),放热138KJ.答案是3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-138KJ/mol还是3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-414KJ/mol或3NO2(g)+H2O(L)===2HNO3(aq)+](/uploads/image/z/850308-60-8.jpg?t=%E5%86%99%E5%87%BA298K%E6%97%B6%2C%E4%B8%8B%E5%88%97%E5%8F%8D%E5%BA%94%E7%9A%84%E7%83%AD%E5%8C%96%E5%AD%A6%E6%96%B9%E7%A8%8B%E5%BC%8F3molNO2%28g%29%E4%B8%8E1molH2O%28l%29%E5%8F%8D%E5%BA%94%E7%94%9F%E6%88%90HNO3%28aq%29%E5%92%8CNO%28g%29%2C%E6%94%BE%E7%83%AD138KJ.%E7%AD%94%E6%A1%88%E6%98%AF3NO2%28g%29%2BH2O%28L%29%3D%3D%3D2HNO3%28aq%29%2BNO%28g%29+%CE%94H%3D-138KJ%2Fmol%E8%BF%98%E6%98%AF3NO2%28g%29%2BH2O%28L%29%3D%3D%3D2HNO3%28aq%29%2BNO%28g%29+%CE%94H%3D-414KJ%2Fmol%E6%88%963NO2%28g%29%2BH2O%28L%29%3D%3D%3D2HNO3%28aq%29%2B)
写出298K时,下列反应的热化学方程式3molNO2(g)与1molH2O(l)反应生成HNO3(aq)和NO(g),放热138KJ.答案是3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-138KJ/mol还是3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-414KJ/mol或3NO2(g)+H2O(L)===2HNO3(aq)+
写出298K时,下列反应的热化学方程式
3molNO2(g)与1molH2O(l)反应生成HNO3(aq)和NO(g),放热138KJ.
答案是3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-138KJ/mol
还是3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-414KJ/mol
或3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-46KJ/mol
写出298K时,下列反应的热化学方程式3molNO2(g)与1molH2O(l)反应生成HNO3(aq)和NO(g),放热138KJ.答案是3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-138KJ/mol还是3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-414KJ/mol或3NO2(g)+H2O(L)===2HNO3(aq)+
3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ΔH=-138KJ/mol-------------正确
放热ΔH为负,每mol 反应就是这个反应 3NO2(g)+H2O(L)===2HNO3(aq)+NO(g) ,并不是每mol 物质.
肯定是第一个啊
题目告诉了你放热138KJ △H与反应物的物质的量有关,题目告诉的就是,不是单位物质的量或者其他的
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