1.

A liquid freezes at 300K and boils at 400K. If Kf and Kb values for the liquid are 5 and 2.5 ^(@)C/molalrespectively, then the ratio of latent heat of vaporisation to latent heat of fusion is :-

Answer»

`1:1`
`3:1`
`32:9`
`9:32`

SOLUTION :`Kb=(RTb^(2))/(1000 L_(V )) K_(f )=(RT_(f ) ^(2))/(1000 L_(f)`


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