For the reaction {H_{2(g)} + I_{2(g)} rightle | vedclass

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Question

(D) The equilibrium constant $K_p$ (or $K_c$) is a function of temperature only for a given reaction. It is independent of the initial concentrations

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Temperature

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(D) The equilibrium constant $K_p$ (or $K_c$) is a function of temperature only for a given reaction. It is independent of the initial concentrations of reactants,the presence of a catalyst,or the total pressure of the system. According to the van't Hoff equation,the equilibrium constant varies with temperature as $\ln K = -\frac{\Delta H^\circ}{RT} + \frac{\Delta S^\circ}{R}$. Therefore,the correct option is $D$.

For the reaction ${H_{2(g)} + I_{2(g)} \rightleftharpoons 2HI_{(g)}}$,the equilibrium constant $K_p$ changes with the change in:

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