Hess's law states,

Hess law

In 1840, G.H.Hess (a Russian chemist) proposed an important generalisation of thermochemistry which is known after his name as Hess's law. a) State Hess's law. b) Give illustration of Hess's law.

State Hess's law and explain its one use.

Hess's law is used in the determination of: