The reaction, 2 A ( g ) + B ( g ) ⇋ 3 C ( g ) + D ( g ) is begun with the concentrations of A and B both at an initial value of 1.00 M When equilibrium is reached, the concentration of D is me

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The reaction, 2 A ( g ) ​ + B ( g ) ​ ⇋ 3 C ( g ) ​ + D ( g ) ​ is begun with the concentrations of A and B both at an initial value of 1.00 M When equilibrium is reached, the concentration of D is measured and found to be 0.25 M. The value for the equilibrium constant for this reaction is given by the expressionNEET 2010 (Mains)

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Initial moles : Moles at eq. : ​ 2 A ( g ) ​ 1 1 − ( 2 × 0.25 ) = 0.5 ​ + ​ B ( g ) ​ 1 1 − 0.25 = 0.75 ​ ⇌ ​ 3 C ( g ) ​ 0 3 × 0.25 = 0.75 ​ + ​ D ( g ) ​ 0 0.25 = 0.25 ​ Equilibrium constant, K = [ A ] 2 [ B ] [ C ] 3 [ D ] ​ ∴ K = ( 0.5 ) 2 ( 0.75 ) ( 0.75 ) 3 ( 0.25 ) ​

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