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in Physical and Chemical Equilibrium by (45.7k points)
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Define Q value for a chemical equilibrium reaction.

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Consider a homogeneous reversible reaction xA + yB ⇌ lC + mD For the above reaction under nonequilibrium conditions, reaction quotient Q is defined as the ratio of the product of active masses of reaction products raised to the respective stoichiometric coefficients in the balanced chemical equation to that of the reactants. Under non equilibrium conditions,

Q = \(\frac{d(In\,K)}{dt}\Delta H°=\frac{\Delta H°}{RT^2}\)

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