Evaporation Multiple Choice Questions with Answers – PDF Download

MCQ 1: From surroundings, evaporation requires:

1. kinetic energy
2. thermal energy
3. potential energy
4. chemical energy

MCQ 2: The difference between boiling and evaporation is that:

1. evaporation can occur at any temperature
2. boiling can occur at any temperature
3. evaporation can not occur at any temperature
4. none of the above

MCQ 3: In the process of evaporation, thermal energy is supplied by:

1. the surroundings
2. an energy source
3. both A and B
4. none of the above

MCQ 4: The rate of evaporation increases when temperature:

1. is zero
2. is negative
3. decreases
4. increases

MCQ 5: The specific latent heat of vaporization is 2.25 × 10⁶ J kg^-1.If a man generates 800 J of heat every second by running, and half heat is lost from the body by evaporation, what is the mass of water evaporated in a 2 hour running?

1. 2 kg
2. 1.28 kg
3. 3.2 kg
4. 1.67 kg