Identify the law for the statement "Overall the enthalpy change for a reaction is equal to sum of enthalpy changes of individual steps in the reaction"

Hess's law of constant heat summation states that the total enthalpy change for a chemical reaction is independent of the path by which the reaction occurs.

If a reaction takes place in several steps, the overall enthalpy change is equal to the sum of the enthalpy changes of the individual steps. This is because enthalpy is a state function, meaning it depends only on the initial and final states of the system, not on the path taken.

Answer: Hess's law