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KVPY2014ChemistryElectrochemistry

The standard free energy change (in J) for the reaction 3 Fe ²⁺( aq )+2 Cr ( s )=2 Cr ³⁺( aq )+3 Fe ( s ) given

Options

  1. A57,900
  2. B-57,900
  3. C-173,700
  4. D173,700

Correct answer

C. -173,700

Step-by-step solution

E _ Cell ^ = SRP cathode - SRP anode =-0.44-(-0.74)=0.3 ~V Y C G =- nF E _ Cel| ^ ( n =6 . ele .⁻ )

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