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Hess' Law

"The change o...

Question

"The change of enthalpy of a chemical reaction is the same whether the reaction takes place in one step or in several steps". This law was presented by:

A

Hess

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B

La Chatelier

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C

Kirchhoff

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D

Lavoisier and Laplace

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Solution

The correct option is A Hess
According to Hess's law of constant heat summation, even if a chemical reaction takes place by several different routes, the change in enthalpy of the reaction will be same for all the routes.

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