The boiling point elevation constant for toluene ( ) is

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Problem

The boiling point elevation constant for toluene (

b.p = 110.7^\circ\text{C}

) is

3.32 \text{ K molality}^{-1}

. The entropy of vaporisation of toluene in

\text{J K}^{-1} \text{ ml}^{-1}

is : (1)

33.02 \times 10^3

(2) 88.5 (3) 0.885 (4) 33.02