Physics
The rate of evaporation of a liquid increases when:
- temperature of liquid falls
- liquid is poured in a vessel of less surface area
- air is blown above the surface of liquid
- humidity increases
Related Questions
Match the following:
Column A Column B (a) Blowing air increases (i) increase in inter-molecular separation (b) Increase in pressure increases (ii) pendulum of a clock (c) Thermal expansion (iii) cooking utensils (d) Invar (iv) boiling point (e) Pyrex glass (v) evaporation In evaporation:
- all molecules of liquid begin to escape out
- only the molecules at the surface escape out
- the temperature of liquid rises by absorbing heat from surroundings
- the molecules get attracted within the liquid
During boiling or vaporization:
- all molecules take part
- temperature rises
- no heat is absorbed
- the average kinetic energy of molecules increases
The boiling point of a liquid is increased by:
- increasing the volume of liquid
- increasing the pressure on liquid
- adding ice to the liquid
- decreasing pressure on liquid