If Δ G = Δ H - T Δ S and Δ G = Δ H + T d Δ G dT , then variation of EMF of a cell E, with temperature T, is given by

By comparision we get Δ S = - d Δ G dT by substituting Δ G = - nFE and rearranging we get dE dT = Δ S nF

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ChemistryThermodynamics - IFirst law of ThermodynamicsEasy2 minPYQ_2020

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If $Δ G = Δ H - T Δ S$ and $Δ G = Δ H + T [\frac{d (Δ G)}{dT}]$ , then variation of EMF of a cell E, with temperature T, is given by

Answer:

Solution:

By comparision we get

$Δ S = \frac{- d (Δ G)}{dT}$

by substituting $Δ G = - nFE$ and rearranging we get

$\frac{dE}{dT} = \frac{Δ S}{nF}$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Thermodynamics - ISubtopic:First law of Thermodynamics

⏱ 2mℹ️ Source: PYQ_2020

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