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Choose the correct option.
The cell reaction is spontaneous or feasible when emf of the cell is:
- (1)negative
- (2)positive
- (3)zero
- (4)either positive or negative
Answer
Answer
AICorrect option: (2)
Answer: (2) positive
Since $\Delta G = -nFE_{cell}$, a positive emf makes $\Delta G$ negative, so the reaction is spontaneous.
From ISC 2019 Chemistry Paper 1, question 1(b)(i).