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.
Answers
Explanation:
(a) A gas fills completely the vessel in which it is kept.
Reason-Gases have a negligible intermolecular force of attraction between the particles of gas. The random motion of particles in all the directions is experience in the vessel. Hence, the gas fills completely the vessel in which it is kept.
(b) A gas exerts pressure on the walls of the container.
Reason-The pressure exerted by a gas is due to the random motion of particles in the gas. Gases have weak intermolecular forces and the particles in continuous random motion and these particles collide with the walls of the container. These collisions with the walls of the container exerts pressure on the gas.
(c) A wooden table should be called a solid.
Reason-It has a definite shape and volume. It is very rigid and cannot be compressed i.e., it has the characteristics of a solid.
Answer:
a)Gases have negligible intermolecular force of attraction between the particles of gas.
b) the pressure exerted by the gas is due to the random motion of particles of gas.
c) it has a definite shape and volume. it is very rigid and cannot be compressed .