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In a reaction of the type A(s) + 2B...

In a reaction of the type
`A(s) + 2B(g) iff C(g) + D(g)`
the equilibrium concentrations of A, B, C and D are 1, 2, 5 and 6 mol/litre respectively. Argon is then introduced at equilibrium at constant volume. Calculate the concentrations of A, B, C and D at the new equilibrium position.

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Eqb. concs, do not change
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