1.

In a 1.0 L aqueous solution when the reaction 2Ag^(+)(aq) + Cu(s) rarr Cu^(2+)(aq) + 2Ag(s) reaches equilibrium,[Cu^(2+)] = xM "and" [Ag^(+)] = yM If the volume of solution is doubled by adding water, then at equilibrium :

Answer»

`[Cu^(2+)] = x/2 M, [Ag^(+)] = Y/2 M`
`[Cu^(2+)] gt x/2 M, [Ag^(+)] gt Y/2 M`
`[Cu^(2+)] lt x/2 M, [Ag^(+)] gt Y/2 M`
`[Cu^(2+)] lt x/2 M, [Ag^(+)] lt Y/2 M`

Solution :CONSIDER the EQUATION : `2Ag^(+)(aq) + Cu(s) rarr Cu^(2+)(aq) + 2Ag(s)`
At equilibrium : `[Cu^(2+)] = xM , [Ag^(+)] = YM`
`K_(eq) = K_(c) = [Cu^(2+)]/[Ag^(+)]^(2) = x/y^(2)`


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