Question

what is Hess's law?

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Answer 1

Answer:

Hess's law, also called Hess's law of constant heat summation or Hess's law of heat summation, rule first enunciated by Germain Henri Hess, a Swiss-born Russian chemist, in 1840, stating that the heat absorbed or evolved (or the change in enthalpy) in any chemical reaction is a fixed quantity and is independent of the ...

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Answer 2

Answer:

heat of any reaction for a specific reaction is equal to the sum of the heats of reaction for any set of reactions which in sum are equivalent to the overall reaction.