MCQOPTIONS
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| 1. |
The standard electrode potential E⊖ and its temperature coefficient \(\left( {\frac{{{\rm{d}}{{\rm{E}}^ \ominus }}}{{{\rm{dT}}}}} \right)\) for a cell are 2V and-5 × 10-4 VK-1 at 300 K respectively. The cell reaction isZn (s) + Cu2+ (aq) → Zn2+ (aq) + Cu (s)The standard reaction enthalpy (∆r H⊖) at 300 K in KJ mol-1 is,[Use, R = 8 JK-1 mol-1 and F = 96,000 C mol-1] |
| A. | -412.8 |
| B. | -384 |
| C. | 206.4 |
| D. | 192 |
| Answer» B. -384 | |