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NEET2010ChemistryElectrochemistryActual

For the reduction of silver ions with copper metal, the standard cell potential was found to be +0.46 ~V at 25^ C . The value of standard Gibbs energy, G ^ will be ( F =96500 C mol ⁻¹ )

Options

  1. A-89.0 ~kJ
  2. B-89.0 ~J
  3. C-44.5 ~kJ
  4. D-98.0 ~kJ

Correct answer

A. -89.0 ~kJ

Step-by-step solution

We know that, standard Gibbs energy, G^ =-n nF _ cell ^ For the cell reaction, aligned 2 Ag ⁺ & + Cu Cu ²⁺+2 Ag E _ cell ^ & =+0.46 ~V G ^ & =-2 96500 0.46 & =-88780 ~J & =-88.7 ~kJ -89.0 ~kJ aligned

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