Stoichiometry
The heats of vaporisation of CS₂, C₂H₅OH &H₂O are 26.8, 38.6 & 40.6 KJ/kg mole respectively. The order of decreasing inter-molecular forces in these liquids is

CS₂ > C₂H₅OH > H₂O
H₂O > CS₂ > C₂H₅OH
H₂O > C₂H₅OH > CS₂
CS₂ > H₂O > C₂H₅OH

ANSWER DOWNLOAD EXAMIANS APP

Stoichiometry
Raoult's law states that 'the equilibrium vapor pressure that is exerted by a component in a solution is proportional to the mole fraction of that component'. This generalisation is based on the assumption that the

Sizes of the component molecules are approximately equal
Component molecules are non-polar and no chemical combination or molecular association between unlike molecules takes place in the formation of the solution
Attractive forces between like and unlike molecules are approximately equal
All of these

ANSWER DOWNLOAD EXAMIANS APP