NEET2016ChemistryElectrochemistryActual
If the E c e l l o for a given reaction has a negative value, which of the following gives the correct relationship for the values of ∆ G o and K e q ?
Options
- A∆ G o > 0 ; K e q < 1
- B∆ G o > 0 ; K e q > 1
- C∆ G o < 0 ; K e q > 1
- D∆ G o < 0 ; K e q < 1
Correct answer
A. ∆ G o > 0 ; K e q < 1
Step-by-step solution
ΔG ∘ = - 2 . 303 RT   log   k ΔG ∘ = − nFE o ∵ E cell o = - ve   E cell o < 0 , then, ΔG ∘ = − nF - E o = + ve From the equation, ΔG ∘ = - 2 . 303 RT   log   k ∴ ∆ G ∘ = + v e & K e q = - v e i.e., ∆ G ∘ > 0 & K e q < 1 .