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The equilibrium constants for the stepwi...

The equilibrium constants for the stepwise formation of `MCI`, `MCl_2` and `MCI_3` are a, b and c respectively. If the equilibrium contant of formation of `MCI_3` is K, which of the following is correct?

A

`K = a + b + c`

B

`1/K=1/a+1/b+1/c`

C

`log K = log a + log b+ log c`

D

`K=1/a xx 1/b xx 1/c`

Text Solution

Verified by Experts

The correct Answer is:
C
`M+Cl harr MCl, K_(c)=a` …(1)
`MCl+Cl harr MCl_(2), K_(c)=b` …(2)
`MCl_(2)+Cl harr MCl_(3), K_(c)=C` …(3)
Add (1)(2)&(3)
`M+3Cl harr MCl_(3), K=a xx b xx c`
`:. log k=log a+log b+log c`
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