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Electrochemistry question

2019 · 12 Jan · Shift 1 · Q7

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JEE Main
Chemistry
Electrochemistry
2019 · 12 Jan · Shift 1 · Q7

Electrochemistry question

2019 · 12 Jan · Shift 1 · Q7

JEE MainChemistryElectrochemistryMCQ+4 / −1

The standard electrode potential

{E^o }

and its temperature coefficient

\left( {{{d{E^o }} \over {dT}}} \right)

for a cell are 2V and

-

5

\times

10

-

4 VK

-

1 at 300 K respectively. The cell reaction is

Zn

(s) +

Cu^{2+}

(aq)

\xrightarrow{\,}

Zn^{2+}

(aq) +

Cu

(s) The standard reaction enthalpy (

\Delta

rH

{^o }

) at 300 K in kJ mol–1 is, [Use R = 8 JK–1 mol–1 and F = 96,000C mol–1]

A
$-$ 412.8
B
$-$ 384.0
C
192.0
D
206.4

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