Question

Difference between heat of reaction at constant pressure and constant volume for the reaction given below at 25 c in kj is

Answer 1

Heat of reaction at constant pressure is ΔH and at constant volume is ΔU.

ΔH-ΔU=ΔngRT

Δng=12-15=-3

ΔngRT=(-3)*(8.314*10-3KJ/mol/K)*(298 K)=-7.43

one more thing,someone may think of dividing the reaction by 2..but that will be wrong.

On multiplying by a factor,ΔH and ΔU also get multiplied by the factor

Answer 2

Explanation:

hope it helps u sir ❤❤❤❤❤❤