Question

suggest an experiment to prove that the rate of evaporation of a liquid depends on the surface area and vapour already present in surrounding air.

Answer 1

TAKE A UTENSIL WITH A OPEN OR WIDE OPENING.AND A CONTAINER WITH SMALL OPENING.FILL THEM WITH EQUAL AMOUNT OF WATER. AFTER SOME DAYS CHECK THE LEVEL OF WATER PRESENT IN BOTH THE CONTAINER . WE CAN FIND THAT WATER EVAPORATED AT MUCH HIGHER RATE IN THE CONTAINER WITH WIDER MOUTH , AS MORE SURFACE OF WATER COULD COME IN CONTACT TO THE AIR AND EVAPORATE.

Answer 2

Take 4 utensils-2of different radii and2 with same radii
Pour equal amounts of water in all
put the differring radii utensild in the sun
put the same radii utensils one in a humid area and other in a dry area
record your observations