Give reason for
Evaporation occurs from the surface of the liquid .

Evaporation is the process of changing liquid into vapour

Evaporation results in a ………… temperature in the liquid.

Give reason for The rate of evaporation of ether is more than that of ethanol .

Which of the following is correct regarding boiling and evaporation ? (i) Both boiling and evaporation take place in closed as well as open containers. Evaporation takes place only from the surface of liquid, while boiling involves the formation of bubbles below the surface. (iii) Evaporation takes place at all temperatures , while boiling takes place only at one particular temperature. (iv) Boiling point decreases if the external pressure is low but evaporation increases if the external pressure is low

An inverted cone of height H , and radius R is pointed at bottom. It is completely filled with a volatile liquid. If the rate of evaporation is directly proportional to the surface area of the liquid in contact with air (constant of proportionality k gt 0). Find the time in which whole liquid evaporates.