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Explain enthalpy change in single step is equal to the sum of enthalpy of several steps

Explain enthalpy change in single step is equal to the sum of enthalpy of several steps

Grade:7

1 Answers

Arun
25750 Points
6 years ago
Hess`s Law states that the heat transferred, or change in enthalpy (H), in a reaction is the same regardless whether the reaction occurs in a single step or in several steps. The method of calculating the enthalpy of reaction developed by Hess is called Hess`s Law of Heat Summation. If a series of reactions are added together, the net change in the heat of the reaction is the sum of the enthalpy changes for each step.

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