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  • If standard electrode potential at 300 k for the given reaction is 2 voltThen, find Keq for the JEE MAIN 2019

Answers (1)

Equilibrium constant for a net reaction -

K_{net}=K_{1}\times K_{2}.........

- wherein

The equilibrium constant for a net reaction obtained after adding two reactions equal the product of the equilibrium constant for individual reactions.

Equilibrium constant in gaseous system -

For equilibrium involving gases, it is usually more convenient to express the equilibrium constant in terms of partial pressure. 

- wherein

The ideal gas equation is written as 

PV=nRT

Equilibrium in Chemical processes -

When the rates of forward and reverse reactions become equal the concentration of the reactants and the products remains constant. This is the stage of chemical equilibrium. -

\Delta G^{0}= -RT ln K=-nFE_{Cell}^{0}

lnk = \frac{nFE^{0}}{RT}=\frac{2\times 96000\times 2}{8\times 300}

lnk = 160

logK = 160/2.303

k\: =\: 10^{68}

option (1) is correct

Posted by

Ankit Dutt

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