已知Fe(s)+CO2(g)=FeO(s)+CO(g)

题目

已知Fe(s)+CO2(g)=FeO(s)+CO(g)
Fe(s)+CO2(g)=FeO(s)+CO(g) K1
Fe(S)+H2O(g)=FeO(s)+H2(g) K2
co2(g)+H2=CO(g)+H2O(g) K3
K1K2K3之间的关系式是

答案

Fe(s)+CO2(g)=FeO(s)+CO(g) K1 减去
Fe(S)+H2O(g)=FeO(s)+H2(g) K2 等于
CO2(g) - H2O(g)=CO(g）-H2(g) 焓变等于 K1-K2
调整一下,就等于
co2(g)+H2（g)=CO(g)+H2O(g) 因此K3=K1-K2