Question 5

In which of the following cases, evaporation of water will be slowest?

(a) A tray of water kept in sunlight
(b) A kettle of water kept on a burner
(c) A glass of water kept in a room
(d) A bucket of water kept on a rooftop

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Solution

The rate of evaporation increases on increasing the exposure to heat and the surface area. Out of the given options, a glass of water kept in a room has the minimum surface area and it is not exposed to heat. Therefore the rate of evaporation will be minimum in this case.

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Question 5 In which of the following cases, evaporation of water will be slowest? (a) A tray of water kept in sunlight (b) A kettle of water kept on a burner (c) A glass of water kept in a room (d) A bucket of water kept on a rooftop

The rate of evaporation increases on increasing the exposure to heat and the surface area. Out of the given options, a glass of water kept in a room has the minimum surface area and it is not exposed to heat. Therefore the rate of evaporation will be minimum in this case.

Question 5

In which of the following cases, evaporation of water will be slowest?

(a) A tray of water kept in sunlight
(b) A kettle of water kept on a burner
(c) A glass of water kept in a room
(d) A bucket of water kept on a rooftop