Question

Define and explain heat of reaction. What is Hess's law of constant heat summation, explain with example​

Answer 1

Answer:

The law states that the change in enthalpy for a reaction is the same whether the reaction takes place in one or a series of steps.  

Explanation:

The Hess's law can also be stated as the enthalpy change for a chemical reaction is the same regardless of the path by which the reaction occurs.

Answer 2

Answer:

The law states that the change in enthalpy for a reaction is the same whether the reaction takes place in one or a series of steps. The Hess's law can also be stated as the enthalpy change for a chemical reaction is the same regardless of the path by which the reaction occurs.