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The vapour pressure of water at 20^(@) i...

The vapour pressure of water at `20^(@)` is `17.5 mmHg`. If `18 g` of glucose `(C_(6)H_(12)O_(6))` is added to `178.2 g` of water at `20^(@) C`, the vapour pressure of the resulting solution will be

A

17.325 mm Hg

B

17.675 mm Hg

C

15.75 mm Hg

D

16.5 mm Hg

Text Solution

Verified by Experts

The correct Answer is:
A
`p=p^(0)x_(A)`
`=17.5xx(178.2//18)/(178.2//18+(18)/(180))`
`=17.325`mm Hg
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