Question

It was a humid day, Sheela had washed the clothes and was spreading them in the verandah
for drying. Her neighbor Alka advised her to spread the clothes in the open in flowing air. That
suggestion worked and Sheela could collect the dry clothes in the evening.
(a) Name the phenomenon associated with drying of clothes.
(b) What are the other factors influencing this phenomenon?
(c) Write the values shown by Alka.

Answer 1

a)the phenomenon taken place here is evaporation.
b) other factors the influence evaporation are wind speed, atmospheric temperature, humidity, surface area
c) the values displayed by alka is caring as a neighbor and looks out for others welfare.

hope this helps you!!

Answer 2

a) The phenomenon associated with drying of clothes is called Evaporation( or sometimes called vaporization).

It is the process of convertion of a liquid into its gaseous form.

Spreading the clothes in the flowing air increases the rate of vaporization, and therefore the clothes dry up faster.

b) The factors that affect the process of evaporation are given below:

1. Humidity

2.Temperature

3.Pressure

4.Wind speed

5.Surface area

All these factors affect the rate of vaporization.

c) Alka was caring and kind enough to show Sheela the right way for drying clothes.

She asked her to dry the clothes in open flowing air since increased wind speed would also increase the rate of evaporate and hence faster drying up of the clothes.