Question

The standard electrode potential $E^{\ominus }$ and its temeprature coefficient $\left(\frac{d{E}^{\ominus }}{dT}\right)$ for a cell are 2V and $-5\times 10^{-4}V{K}^{-1}$ at 300 K respectively. The cell reaction is
$\mathrm{Zn}(\mathrm{s})+\mathrm{Cu}{}^{2+}(\mathrm{aq})\to \mathrm{Zn}{}^{2+}(\mathrm{aq})+\mathrm{Cu}(\mathrm{s})$
The standard reaction enthalpy $({\Delta }_r{H}^{\ominus })$ at 300 K in kJ $mo{l}^{-1}$ is;
[Use $R=8j{K}^{-1}mo{l}^{-1}$ and $F=96,000C$ $mo{l}^{-1}$]

• A. -412.8
• B. -384.0
• C. 206.4
• D. 192.0

Answer 1

Answer: (A)

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