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At a certain temperature , only 50% HI i...

At a certain temperature , only 50% HI is dissociated at equilibrium in the following reaction:
`2HI(g)hArrH_(2)(g)+I_(2)(g)`
the equilibrium constant for this reaction is:

A

0.25

B

1 .0

C

0.218

D

0 .5

Text Solution

Verified by Experts

The correct Answer is:
A
`{:(,2HI_((g)),hArr,H_(2(g))+,I_(2(g))),(t=0,1,,0,0),(t=eq^(n),1-0.5,0, 0.25,0.25):}`
`K_(C)=((0.25)^(2))/((0.5)^(2))=0.25`
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