A) decrease in free energy in a spontaneous chemical process appears as electrical energy
B) decrease in free energy in a spontaneous physical process appears as electrical energy
C) decrease in free energy in a spontaneous physical or chemical process appears as electrical energy
D) a non-spontaneous physical or chemical process produces electrical energy.
Correct Answer: B
Solution :
[b] In concentration cell the spontaneous process is physical in nature involving transfer of matter from higher concentration to lower concentration in indirect manner.
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