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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 $$R\rightarrow P$$;

$$\Delta H_r=\Delta H_1+\Delta H_2+\Delta H_3$$.

1495283_1699999_ans_b98484a22b3e4042968a1c30891f23c0.png

Chemistry

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