Verified Solution • 2025–26 Session moderate

QJEEM21Ch4080: JEE Main 2021 Chemistry - Class 11 JEEM21Ch4080 Solution: The incorrect expression among the following is :

The incorrect expression among the following is :

Multiple Choice Options

  • A ΔGSystemΔSTotal=−T{{\Delta {G_{System}}} \over {\Delta {S_{Total}}}} = - T (at constant P)
  • B K=ΔH∘−TΔS∘RTK = {{\Delta H^\circ - T\Delta S^\circ } \over {RT}}
  • C K=e−ΔG∘/RTK = {e^{ - \Delta G^\circ /RT}}
  • D For isothermal process wreversible=−nRTln⁡VfVi{w_{reversible}} = - nRT\ln {{{V_f}} \over {{V_i}}}

Step-by-Step Verified Solution

Option (b) is incorrect.

Δ\Delta G ∘^\circ = −- RT ln K

Δ\Delta H ∘^\circ −- T Δ\Delta S ∘^\circ = −- RT ln K

ln K = [ΔH∘−ΔS∘RT]\left[ {{{\Delta H^\circ - \Delta S^\circ } \over {RT}}} \right]

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