Question

7. Give reasons :
(a) A gas fills completely the vessel in which it is kept.
(b) A gas exerts pressure on the walls of the container.
(c) A wooden table should be called a solid.
(d) We can easily move our hand in air but to do the same through a solid block of wood, we need a
karate expert.​

Answer 1

Answer:

gas completely fills the vessel in which it is kept because there is negligible force of attraction between the particles of gas. Thus, the gas particles move freely in all directions. ... A gas exerts pressure on the walls of the container because the particles of gas move randomly in all directions at high speed.

Answer 2

Answer:

a) Because gas have free molecules which move inside the vessel and fill it.

b) Because gas exerts more pressure as compared to other states.

c) Because its molecules have very tight bonding between each other.

HOPE IT HELPED YOU

            THANKS