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A dilute solution having on mole of sol...

A dilute solution having on mole of solute 'S' in 1 kg solvent with molal elevation constant `K_(b)` Solute undergoes association as follows. `2ShArrS_(2)` The degree of association of solute `alpha` is given by the following expression .
`alpha=(1-i)/(1-1//n)`
Where, in the number of molecular of solute undergoing association .
The degree of association can be given as :

A

`alpha =(DeltaT_(b))/(2K_(b))`

B

`alpha=(2+2DeltaT)/(K_(b))`

C

`alpha=(K_(b)-DeltaT)/(2DeltaT)`

D

`alpha=2(K_(b)-DeltaT)/(K_(b))`

Text Solution

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The correct Answer is:
D
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