C(s)+H2O(g) = CO(g)+H2(g);ΔH=?反应热怎么算出来的?C(s)+O2(g)=CO2(g) (三角形)H=-393.5ki/molH2(g)+1/2O2(g)=H2O(g) (三角形)H=-242.0ki/molCO(g)+1/2O2(g)=CO2(g) (三角形)H=-283.0ki/mol根据以上数据,写出C(s)与水蒸
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![C(s)+H2O(g) = CO(g)+H2(g);ΔH=?反应热怎么算出来的?C(s)+O2(g)=CO2(g) (三角形)H=-393.5ki/molH2(g)+1/2O2(g)=H2O(g) (三角形)H=-242.0ki/molCO(g)+1/2O2(g)=CO2(g) (三角形)H=-283.0ki/mol根据以上数据,写出C(s)与水蒸](/uploads/image/z/4852908-36-8.jpg?t=C%28s%29%2BH2O%28g%29+%3D+CO%28g%29%2BH2%28g%29%3B%CE%94H%3D%3F%E5%8F%8D%E5%BA%94%E7%83%AD%E6%80%8E%E4%B9%88%E7%AE%97%E5%87%BA%E6%9D%A5%E7%9A%84%3FC%28s%29%2BO2%28g%29%3DCO2%28g%29+%EF%BC%88%E4%B8%89%E8%A7%92%E5%BD%A2%EF%BC%89H%3D-393.5ki%2FmolH2%28g%29%2B1%2F2O2%28g%29%3DH2O%28g%29+%EF%BC%88%E4%B8%89%E8%A7%92%E5%BD%A2%EF%BC%89H%3D-242.0ki%2FmolCO%28g%29%2B1%2F2O2%28g%29%3DCO2%28g%29+%EF%BC%88%E4%B8%89%E8%A7%92%E5%BD%A2%EF%BC%89H%3D-283.0ki%2Fmol%E6%A0%B9%E6%8D%AE%E4%BB%A5%E4%B8%8A%E6%95%B0%E6%8D%AE%2C%E5%86%99%E5%87%BAC%EF%BC%88s%EF%BC%89%E4%B8%8E%E6%B0%B4%E8%92%B8)
C(s)+H2O(g) = CO(g)+H2(g);ΔH=?反应热怎么算出来的?C(s)+O2(g)=CO2(g) (三角形)H=-393.5ki/molH2(g)+1/2O2(g)=H2O(g) (三角形)H=-242.0ki/molCO(g)+1/2O2(g)=CO2(g) (三角形)H=-283.0ki/mol根据以上数据,写出C(s)与水蒸
C(s)+H2O(g) = CO(g)+H2(g);ΔH=?反应热怎么算出来的?
C(s)+O2(g)=CO2(g) (三角形)H=-393.5ki/mol
H2(g)+1/2O2(g)=H2O(g) (三角形)H=-242.0ki/mol
CO(g)+1/2O2(g)=CO2(g) (三角形)H=-283.0ki/mol
根据以上数据,写出C(s)与水蒸气反应的热化学方程式:
(麻烦请具体点说说怎么算出三角形H的)
C(s)+H2O(g) = CO(g)+H2(g);ΔH=?反应热怎么算出来的?C(s)+O2(g)=CO2(g) (三角形)H=-393.5ki/molH2(g)+1/2O2(g)=H2O(g) (三角形)H=-242.0ki/molCO(g)+1/2O2(g)=CO2(g) (三角形)H=-283.0ki/mol根据以上数据,写出C(s)与水蒸
可以利用hess定律
1、C(s)+O2(g)=CO2(g) (三角形)H=-393.5ki/mol
2、H2(g)+1/2O2(g)=H2O(g) (三角形)H=-242.0ki/mol
3、CO(g)+1/2O2(g)=CO2(g) (三角形)H=-283.0ki/mol
4、C(s)+H2O(g) = CO(g)+H2(g) H=?
方程式4=1-2-3
焓变就是直接相减就可以
所以H=-393.5+242.0+283.0=131.5ki/mol