Question

. a. When sugar is dissolved in water, there is no increase in the volume. Which characteristics of matter is illustrated by this observation? b. How does the water kept in an earthen pot become cold during summer? c. Draw the 'states of matter triangle' to show the interconversion of states of matter

Answer 1

Answer:

(a)particles of matter have space between them

(b)evaporation causing cooling. when water evaporates it takes away the latent heat of vaporization from the pot and also water .hence the water gets cooled

Answer 2

Answer:

a) when sugar is dissolved in water therapy will be no increase in volume because the sugar molecules will settle in the space between water molecules

b) when water is kept in earthen pot it gets cold because there are tiny holes in earthen Pot that small holes help in evaporation. since evaporation produce cooling effect

c) solid changes to liquid by melting, liquid changes into gas by evaporation, gas changes into solid by sublimation