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BITSAT2024ChemistryThermodynamics (C)Actual

The standard Gibbs energy ( G^0 ) for the following reaction is aligned & A ( s )+ B ²⁺( aq ) A ²⁺( aq )+ B ( s ), K _ c =10¹² at & 25^ C aligned ( K _c= . equilibrium constant )

Options

  1. A-150 ~kJ
  2. B-96.80 ~kJ
  3. C-68.47 ~kJ
  4. D-100 kJ

Correct answer

C. -68.47 ~kJ

Step-by-step solution

A + B ²⁺ A ²⁺+ B G ^ =- RT K _ c =-8.314 298 2.303 10¹²=68.47 ~kJ / mol

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