Chemistry Thermodynamics and Thermochemistry First law of Thermodynamics and Hess law Single Correct MCQ
Published on: August 13, 2026

“The resultant heat change in a reaction is the same whether it takes place in one or several stages.” This statement is called

A
Lavoisier and Laplace law
B
Hess's law
C
Joule's law
D
Le–chatelier's principle

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The correct answer is:
B

Hess's law states that the total heat change of a reaction is independent of the path and depends only on the initial and final states.

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