Temperature dependence of the cell potential

By differentiating the equation, nFS = —AG with respect to temperature, we obtain 

If the cell does not contain a gas electrode, then since the entropy changes of reactions in solution are frequently rather small, less than 50 J/K, the temperature coefficient of the cell potential is usually of the order of 10 or 10 V/K. As a consequence, if only routine equipment is being used to measure the cell potential and the temperature coefficient is sought, the measurements should cover as wide a range of temperature as is feasible. 

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