Verified Solution • 2025–26 Session moderate

QJEEM05Ch9b8b: JEE Main 2005 Chemistry - Class 12 JEEM05Ch9b8b Solution: For a spontaneous reaction the ∆G , equilibrium constant (K)…

For a spontaneous reaction the ∆G , equilibrium constant (K) and EcelloE_{cell}^o will be respectively

Multiple Choice Options

  • A -ve, >1, +ve
  • B +ve, >1, -ve
  • C -ve, <1, -ve
  • D -ve, >1, -ve

Step-by-Step Verified Solution

NOTE : For spontaneous reaction ΔG\Delta G should be negative. Equilibrium constant should be more than one

(ΔG=−2.303 RT log⁡Kc,  \left( {\Delta G = - 2.303\,RT\,\log {K_c},\,\,} \right.

If Kc=1  {K_c} = 1\,\, then    ΔG=0;  \,\,\,\Delta G = 0;\,\,

If {K_c} &lt; 1 then ΔG=+ve).  \left. {\Delta G = + ve} \right).\,\,

Again    ΔG=−nFEcell∘\,\,\,\Delta G = - nFE_{cell}^ \circ

Ecell∘   E_{cell}^ \circ \,\,\, must be +ve+ve to have ΔG−ve.\Delta G - ve.

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