1.

1 mole each of A and D is intoduced in 1 litre container. Simultaneously the following two equilibria are established: A hArrB+C K_(C)=10^(6)M^(2) B+DhArrA K_(C)=10^(-6)M^(-1) The equilibrium concentration of A will be

Answer»

`10^(-3)M`
`10^(-12)M`
`10^(-6)M`
`10^(-4)M`

Solution :`AhArrB+C`….(i)
`K_(C)=10^(6)`
`{:("ASSUME",l-I,I),("at EQM x",1-x,1-x):}`
`B+DhArr A`….(ii)
`K_(c)=10^(-6)`
at eqm `1-x10xx`
by i+ii
`DhArrCK_(C)=10^(6)xx10^(-6)=1`
at eqm 1-x 1-x
For (i) `k_(c)=10^(6)=(IxxI)/(x)rArrx=10^(-6)`


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