Question

(a) What are the two ways in which the physical states of matter can be changed?
(b) Draw the 'states of matter triangle' to show the interconversion of states of matter.
(c) How can the evaporation of a liquid be made faster?

Answer 1

(a) The physical state of matter can be changed by:
(i) By altering the temperature.
(ii) By altering the pressure.

(b) Inter conversion of state of matter can be shown as:



(c) Evaporation of liquid can be made faster by following methods:

(i) By increasing the temperature.
(ii) By increasing the surface area.
(iii) By lowering the humidity.
(iv) By increasing the speed of the wind.