The Total solution for NCERT class 6-12
Enthalpies of formation of CO(g), CO2(g), N2O(g) and N2O4(g) are –110 kJ mol–1, – 393 kJ mol–1, 81 kJ mol–1 and 9.7 kJ mol–1 respectively. Findthe value of ΔrH for the reaction:
N2O4(g) + 3CO(g)N2O(g) + 3CO2(g)
ΔrH for a reaction isdefined as the difference between ΔfH value of productsand ΔfH value of reactants.
For the given reaction,
N2O4(g) + 3CO(g) N2O(g) + 3CO2(g)
Substituting the values of ΔfH for N2O, CO2, N2O4, and CO from thequestion, we get:
Hence,the value of ΔrH for the reaction is.