QJEEM16Ch7ac2: JEE Main 2016 Chemistry - Class 11 JEEM16Ch7ac2 Solution: The equilibrium constant at 298 K for a reaction A + B ⇋ C + D…

Question

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The equilibrium constant at 298 K for a reaction A + B

⇋

C + D is 100. If the initial concentration of all the four species were 1M each, then equilibrium concentration of D (in mol L^–1) will be:

Accepted Answer

Given,

JEE Main 2016 (Offline) Chemistry - Chemical Equilibrium Question 84 English Explanation

∴

K_{c} = {(\frac{1 + a}{1 - a})}^{2} = 100

∴

\frac{1 + a}{1 - a} = 10

On solving

a = 0.81

{[D]}_{A t e q} = 1 + a = 1 + 0.81 = 1.81

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