Question

Fill in the following blanks with suitable words :

(a) The best evidence that particles of matter are constantly moving comes from the studies of ______and___

(b) The smell of perfume gradually spreads across a room due to ___

(c) Solid, liquid and gas are the three ___of matter.

(d) At room temperature, the forces of attraction between the paricles of solid substances are ___then those wchich exist in the gaseous state.

(e) The arrangement of particles is less orderd in the ___state . However, there is no order in the ___ state.

Answer 1

(a) Diffusion; Brownian motion.
(b) Diffusion.
(c) States.
(d) Much more.
(e) Liquid; Gaseous.