question_answer 47)

  Look at the figure and suggest in which of the vessels A, B, C or D, the rate of evaporation will be the highest? Explain.

Answer:

  The rate of evaporation will be highest in vessel C as the surface area exposed for evaporation is larger than 6 (smaller size). The moving fan increases the wind speed which also increases the rate of evaporation. Although A and D are also equal in size to that of C but A is at a greater distance from the fan and D is covered with a lid.