Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryGalvanic cells/Nernst Equation/Concentration CellsMedium2 minQB

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Passage / Comprehension

A galvanic cell operates according to:

$Z n (s) + C u^{2 +} (a q) ⇌ Z n^{2 +} (a q) + C u (s)$ .

At $298 K$ , the measured EMF of the cell is $1.100 V$ .

The temperature coefficient of EMF is $(\frac{d E}{d T})_{P} = - 4.0 \times 1 0^{- 4} V K^{- 1}$ .

Which of the following statements is correct?

Answer:

Solution:

$Δ G^{\circ} = - nFE^{\circ}$

$Δ S^{\circ} = nf (\frac{dE}{dT})_{P}$

$Δ H^{\circ} = Δ G^{\circ} + T Δ S^{\circ}$

Stream:JEESubject:ChemistryTopic:ElectrochemistrySubtopic:Galvanic cells/Nernst Equation/Concentration Cells

⏱ 2mℹ️ Source: QB

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