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AIIMS2007Chemistry-Physical Chemistry

AIIMS 2007 Chemistry Thermodynamics Assertion Reason Question

Type: Assertion Reason-conceptual-Medium-Class 11

Assertion : As a salt such as NaCl dissolves, the Na⁺ and Cl⁻ ions leaving the crystal lattice acquire far greater freedom.

Reason : In thermodynamic terms, the formation of solution occurs with a favourable change in free energy, i.e., ΔH has a high positive value and TΔS a low negative value.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Correct Answer

Option C

Detailed Explanation

Formation of solution occurs with a favourable change in free energy.

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