The standard electrode potential E^ and its temperature coefficient ( d E^ e d T ) for a…
Chemistry · NEET · NTA Exams — Electrochemistry
The standard electrode potential \(E^{\theta}\) and its temperature coefficient \(\left(\frac{d E^{\mathrm{e}}}{d T}\right)\) for a cell are 2V and \(-5 \times 10^{-4} \mathrm{VK}^{-1}\) at 300 K respectively. The cell reaction is
\(\mathrm{Zn}(\mathrm{~s})+\mathrm{Cu}^{2+}(\mathrm{aq}) \rightarrow \mathrm{Zn}^{2+}(\mathrm{aq})+\mathrm{Cu}(\mathrm{~s})\)
The standard reaction enthalpy \(\left(\Delta_{r} H^{\ominus}\right)\) at 300 K in kJ mol-1 is:
[Use R = 8 JK-1 mol-1 and F = 96,000 C mol-1]
- -412.8
- -384.0
- 206.4
- 192.0
Answer
(A) -412.8
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