Question

5. Water remains cool in earthern pots in hot summer days.
2. Why does water in a dish evaporate faster then in a bottle ?
4. Why does the size of naphthalene balls decrease when left open ?
3. What do you mean by sublimation and deposition ?
B. Tick (~) the correct choice.
1. The inter molecular space is minimum in
(a) solids
(c) liquids
(b) gases
(d) none of these
2. Melting point of ice is
(a) 10°
(c) 0°
(b) 100
(d) 90°
3. Boiling takes place from
(a) surface of liquid
(c) bottom of the liquid
(b) throughout the liquid
(d) none of these
4. Rapid conversion of water into steam is an example of
(a) evaporation
(b) freezing
(c) melting
(d) vaporization
5. The temperature at which a liquid gets converted into its vapour state is called its
(a) melting point
(b) boiling point
(c) dew point
(d) freezing point​

Answer 1

Answer:

Ans5)Water placed in earthen pots is evaporated from minuscule pores it has as it is made of mud particles. This evaporation of water produces a cooling effect. Some of the heat energy that is generated is used in the process of evaporation. Hence, water stored in earthen pots tends to become cooler in summer.