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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

`15.750 mm Hg`

B

`16.500 mm Hg`

C

`17.325mm Hg`

D

`17.675mm Hg`

Text Solution

Verified by Experts

The correct Answer is:
C
`P_(A)=P_(A)^(@)x_(A)=17.5xx`(178.2//18)/(178.2/(18)+(18)/(180))=17.325`
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