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The standard electrode potential E Θ and its temperature coefficient ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ Θ dT dE for a cell are 2V and –5 × 10 –4 VK –1 at 300 K respectively. The cell reaction is Zn(s) + Cu 2+ (aq) ⎯→ Zn 2+ (aq) + Cu(s) The standard reaction enthalpy ( Δ rH Θ ) at 300 K in kJ mol –1 is, [Use R = 8 JK –1 mol –1 and F = 96,000 Cmol –1 ]

1. –412.8
2. –384.0
3. 192.0
4. 206.4

Correct answer: –412.8

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