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
- A-150 ~kJ
- B-96.80 ~kJ
- C-68.47 ~kJ
- 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