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  • Confused! kindly explain, - Chemical Thermodynamics - JEE Main-2

For a spontaneous reaction the \Delta G , equilibrium constant (K) and E^{\circ}_{cell}  will be respectively

  • Option 1)

      –ve, >1, +ve

  • Option 2)

    +ve, >1, –ve

  • Option 3)

    –ve, <1, –ve

  • Option 4)

    –ve, >1, –ve

 

Answers (1)

As we learnt in

Spontanous process -

\Delta G= \Delta H-\Delta T

 

- wherein

For spontanouse process \Delta G must be negative.

 

\Delta G= -nFE_{cell} 

or  ln K is +ve 

\Rightarrow k > 1 

Now \Delta G is -ve for a spontaneous reaction Ecell for such a reaction is +ve


Option 1)

  –ve, >1, +ve

Correct

Option 2)

+ve, >1, –ve

Incorrect

Option 3)

–ve, <1, –ve

Incorrect

Option 4)

–ve, >1, –ve

Incorrect

Posted by

Sabhrant Ambastha

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