Question

Gibbs free energy at constant pressure and temperature under equilibrium conditions is

• A. Infinity
• B. Zero
• C. Maximum
• D. Minimum

Hint:

Remember: \( \Delta G = 0 \) is the condition for equilibrium under constant temperature and pressure.

Answer 1

The Correct Option is B

At equilibrium, the change in Gibbs free energy \( \Delta G = 0 \).
This means the system has no tendency to change spontaneously at constant \( P \) and \( T \).
Gibbs free energy remains constant in a system at equilibrium.