AIIMS 2004 Chemistry Gibbs Free Energy MCQ Question with Solution

For the equilibrium H₂O(l) ⇌ H₂O(g) at 1 atm and 298 K,

A

standard free energy change is equal to zero (ΔG° = 0)

B

free energy change is less than zero (ΔG < 0)

C

standard free energy change is less than zero (ΔG° < 0)

D

standard free energy change is greater than zero (ΔG° > 0)

Option B

H2O(l) === H2O(g). This is a spontaneous process at standard conditions thus, the standard free energy change must be less than zero, i.e. ΔG° < 0.

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AIIMS 2004 Chemistry Gibbs Free Energy MCQ Question