氨气的燃烧热的热化学方程式NH3(g)燃烧生成NO2和H2O,已知(1)H2(g)+1/2O2(g)==H2O △H=-241.8kJ/mol(2)N2(g)+2O2(g)==2NO2(g) △H=+33.9kJ/mol(3)1/2N2(g)+3/2H2(g)==NH3(g) △H=-46.0kJ/mol(4)H2O(l)==H2O(g) △H=+44kJ/mol则NH3(g)的燃烧
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![氨气的燃烧热的热化学方程式NH3(g)燃烧生成NO2和H2O,已知(1)H2(g)+1/2O2(g)==H2O △H=-241.8kJ/mol(2)N2(g)+2O2(g)==2NO2(g) △H=+33.9kJ/mol(3)1/2N2(g)+3/2H2(g)==NH3(g) △H=-46.0kJ/mol(4)H2O(l)==H2O(g) △H=+44kJ/mol则NH3(g)的燃烧](/uploads/image/z/3331347-51-7.jpg?t=%E6%B0%A8%E6%B0%94%E7%9A%84%E7%87%83%E7%83%A7%E7%83%AD%E7%9A%84%E7%83%AD%E5%8C%96%E5%AD%A6%E6%96%B9%E7%A8%8B%E5%BC%8FNH3%28g%29%E7%87%83%E7%83%A7%E7%94%9F%E6%88%90NO2%E5%92%8CH2O%2C%E5%B7%B2%E7%9F%A5%281%29H2%28g%29%2B1%2F2O2%28g%29%3D%3DH2O+%E2%96%B3H%3D-241.8kJ%2Fmol%282%29N2%28g%29%2B2O2%28g%29%3D%3D2NO2%28g%29+%E2%96%B3H%3D%2B33.9kJ%2Fmol%283%291%2F2N2%28g%29%2B3%2F2H2%28g%29%3D%3DNH3%28g%29+%E2%96%B3H%3D-46.0kJ%2Fmol%284%29H2O%28l%29%3D%3DH2O%28g%29+%E2%96%B3H%3D%2B44kJ%2Fmol%E5%88%99NH3%28g%29%E7%9A%84%E7%87%83%E7%83%A7)
氨气的燃烧热的热化学方程式NH3(g)燃烧生成NO2和H2O,已知(1)H2(g)+1/2O2(g)==H2O △H=-241.8kJ/mol(2)N2(g)+2O2(g)==2NO2(g) △H=+33.9kJ/mol(3)1/2N2(g)+3/2H2(g)==NH3(g) △H=-46.0kJ/mol(4)H2O(l)==H2O(g) △H=+44kJ/mol则NH3(g)的燃烧
氨气的燃烧热的热化学方程式
NH3(g)燃烧生成NO2和H2O,已知
(1)H2(g)+1/2O2(g)==H2O △H=-241.8kJ/mol
(2)N2(g)+2O2(g)==2NO2(g) △H=+33.9kJ/mol
(3)1/2N2(g)+3/2H2(g)==NH3(g) △H=-46.0kJ/mol
(4)H2O(l)==H2O(g) △H=+44kJ/mol
则NH3(g)的燃烧热的热化学方程式:________________
求△H计算方法
氨气的燃烧热的热化学方程式NH3(g)燃烧生成NO2和H2O,已知(1)H2(g)+1/2O2(g)==H2O △H=-241.8kJ/mol(2)N2(g)+2O2(g)==2NO2(g) △H=+33.9kJ/mol(3)1/2N2(g)+3/2H2(g)==NH3(g) △H=-46.0kJ/mol(4)H2O(l)==H2O(g) △H=+44kJ/mol则NH3(g)的燃烧
NH3(g)的燃烧热的热化学方程式是:NH3+4/7O2=NO2+2/3H2O
所以将1式乘以3/2,将2式乘以1/2,将3式反写,将4式反写然后乘以3/2,最后将所有式子相加,得到△H=-365.75kJ/mol