Question

# State and explain Hess's law of constant heat summation.

Solution

## Hess's law of constant heat of summation states that regardless of the multiple stages or steps of a reaction the total enthalpy change of the reaction is the sum of all changes.For $$R\rightarrow P$$;$$\Delta H_r=\Delta H_1+\Delta H_2+\Delta H_3$$.Chemistry

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