Question

Assertion (A): At equilibrium $\Delta G$ becomes zero.

Reason (R): At equilibrium the two tendencies $\Delta H$and $T\Delta S$ become equal.

• A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
• B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
• C. Assertion is true but Reason is false.
• D. Assertion is false and Reason is true.

Answer 1

The correct option is A Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

$\Delta G=\Delta H-T\Delta S$
at $e{q}^m\Delta G=O$
$\therefore \Delta H=T\Delta S$
Also at $e{q}^m\Delta H=T\Delta S$
$\therefore \Delta G=O$