AIPMT PRELIMS2006Chemistry-Thermodynamics

AIPMT PRELIMS 2006 Chemistry Gibbs Free Energy MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Identify the correct statement for change of Gibbs energy for a system (ΔGSystem) at constant temperature and pressure:

A

If ΔGSystem > 0, the process is spontaneous

B

If ΔGSystem = 0, the system has attained equilibrium

C

If ΔGSystem = 0, the system is still moving in a particular direction

D

If ΔGSystem < 0, the process is not spontaneous

Correct Answer

Option B

Detailed Explanation

At equilibrium, the change in Gibbs energy is zero.

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