Question

Compare vapour pressure of ethyl alcohal and water

Answer 1

Vapour pressure can be defined as the partial pressure exerted by the vapours of the liquid surface which is in equilibrium with liquid at a particular temperature. 
This is mainly depends on the nature of the liquid and its temperature.  As we know that water is more polar than diethyl ether and furthermore water can form hydrogen bonding due to which they tend to have attractive forces and could not leave the solution without external heat or energy provided. It is therefore, at the same temperature, the substance having higher vapour pressure (di-ethylether) have weak intermolecular forces working in it and are more volatile than the one having lower vapour pressure (water).


Hope this information will clear your doubts about States of Matter.