Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The temperature coefficient, of the emf i.e. 
= – 0.00065 volt. deg –1 for the cell Cd | CdCl 2 (1M) || AgCl (s) | Ag at 25°C. Calculate the entropy changes Δ S 298K for the cell reaction, Cd + 2AgCl → Cd 2+ + 
+ 2Ag
Text Solution
Verified by ExpertsThe correct answer is:
D
= –0.00065 Vol deg –1
Δ S 298 = n.F. 
= 2×96500× (–0.00065) = – 125.5 J/K.
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