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If the mass of a nonvolatile, nonelectro...

If the mass of a nonvolatile, nonelectrolyte dissolved in a solvent is doubled but that of solvent is quadrupled, the elevation in boiling point of the solvent will be

A

doubled

B

halved

C

four times

D

unchanged

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta T_(b)=(1000K_(b) W_(2))/(W_(1) xx M_(2))`
new `Delta T_(b)=(1000K_(b)(2W_(2)))/((4W_(1)) xx M_(2)) =1/2 (1000 K_(b) W_(2))/(W_(1)M_(2))`
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