已知:H+(aq)+OH-(aq)=H2O(l);ΔH=-57.3 kJ/mol.以下四个热化学方程式:①H2SO4(aq)+2NaOH(aq)=Na2SO4(aq)+2H2O(l);ΔH=-a kJ/mol②HCl(aq)+1/2Ba(OH)2(aq)=1/2BaCl2(aq)+H2O(l);ΔH=-b kJ/mol③1/2H2SO4(aq)
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![已知:H+(aq)+OH-(aq)=H2O(l);ΔH=-57.3 kJ/mol.以下四个热化学方程式:①H2SO4(aq)+2NaOH(aq)=Na2SO4(aq)+2H2O(l);ΔH=-a kJ/mol②HCl(aq)+1/2Ba(OH)2(aq)=1/2BaCl2(aq)+H2O(l);ΔH=-b kJ/mol③1/2H2SO4(aq)](/uploads/image/z/867975-15-5.jpg?t=%E5%B7%B2%E7%9F%A5%EF%BC%9AH%2B%28aq%29%EF%BC%8BOH%EF%BC%8D%28aq%29%EF%BC%9DH2O%28l%29%EF%BC%9B%CE%94H%EF%BC%9D%EF%BC%8D57.3+kJ%2Fmol%EF%BC%8E%E4%BB%A5%E4%B8%8B%E5%9B%9B%E4%B8%AA%E7%83%AD%E5%8C%96%E5%AD%A6%E6%96%B9%E7%A8%8B%E5%BC%8F%EF%BC%9A%E2%91%A0H2SO4%28aq%29%EF%BC%8B2NaOH%28aq%29%EF%BC%9DNa2SO4%28aq%29%EF%BC%8B2H2O%28l%29%EF%BC%9B%CE%94H%EF%BC%9D%EF%BC%8Da+kJ%2Fmol%E2%91%A1HCl%28aq%29%EF%BC%8B1%2F2Ba%28OH%292%28aq%29%EF%BC%9D1%2F2BaCl2%28aq%29%EF%BC%8BH2O%28l%29%EF%BC%9B%CE%94H%EF%BC%9D%EF%BC%8Db+kJ%2Fmol%E2%91%A21%2F2H2SO4%28aq%29)
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