In which condition can a process be considered spontaneous?

A. ΔG negative हो / ΔG is negative

Step 1: Spontaneity is understood using Gibbs free energy. Step 2: At constant temperature and pressure a process can be spontaneous when ΔG is negative. Step 3: Exam note: ΔG < 0 means spontaneous tendency.

Step 1: spontaneity Gibbs free energy से समझी जाती है। Step 2: constant temperature और pressure पर ΔG negative होने पर process spontaneous हो सकता है। Step 3: exam note: ΔG < 0 means spontaneous tendency।