1.

The heats of vaporisation of CS 2 , C 2 H 5 OH &H 2 O are 26.8, 38.6 & 40.6 KJ/kg mole respectively. The order of decreasing inter-molecular forces in these liquids is

A. H 2 O > C 2 H 5 OH > CS 2
B. CS 2 > C 2 H 5 OH > H 2 O
C. H 2 O > CS 2 > C 2 H 5 OH
D. CS 2 > H 2 O > C 2 H 5 OH
Answer» B. CS 2 > C 2 H 5 OH > H 2 O


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