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In very dilute solution the no. of moles...

In very dilute solution the no. of moles of solvent are 10 time more than that of the solute. The V.P. of the solution would be (V.P. of pure solvent = 80mm)

A

80mm

B

88mm

C

72mm

D

92mm

Text Solution

Verified by Experts

The correct Answer is:
C
As the solution is very dilute, addcording to Raoult's law.
`(P_(1)^(0)-P)/P_(1)^(0)=n/N or 1-P/P_(1)^(0)=n/N`
`:. P=(1-n/N)P_(1)^(0)=(1-1/10)80=72mm`
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