Chemistry-Hess's Law

NEET Chemistry Hess's Law Assertion Reason Question

Type: Assertion Reason-assertion-Medium-Class 11

Assertion (A): Hess's Law states that the enthalpy change for a reaction is the same whether it occurs in one step or in multiple steps. | Reason (R): Enthalpy is a state function, making the change in enthalpy independent of the path taken between reactants and products.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false but R is true.

Correct Answer

Option A

Detailed Explanation

Hess's Law of Constant Heat Summation is based on the fact that enthalpy is a state function, making the enthalpy change path-independent as described in the NCERT context.

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