Q15 · CSIR NET Chemistry, June 2017
Paper: CSIR NET June 2017 · Subject: Physical Chemistry · Chapter: Electrochemistry · Topic: Electrochemistry – General · Marks: 2 · Difficulty: Medium
The standard cell potential of cell, $\mathrm{Pt}\,|\,\mathrm{H_2(g)}\,|\,\mathrm{HBr(aq)}\,|\,\mathrm{AgBr(s)}\,|\,\mathrm{Ag(s)}$, was measured over a range of temperatures, and the data was fitted as $E^0(\mathrm{Volt}) = 0.01 - 1\times10^{-4}(T-298) - 2\times10^{-6}(T-298)^2$ The standard reaction entropy ($\mathrm{J\,K^{-1}\,mol^{-1}}$) and enthalpy ($\mathrm{kJ\,mol^{-1}}$) at 298 K are
(a)-9.65 and -3.84
(b)-3.84 and -9.65
(c)-18.3 and -7.68
(d)-7.68 and -18.3
Answer
Answer (as printed): A
Explanation
No explanation was printed for this question.
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