3. 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.
Answers
Answer:
HOPE IT HELPS !
Explanation:
(a) The particles of gases have a low force of attraction between them. The particles are freely moving in the vessel in which it is filled.
(b) The particles of gas have the least force of attraction. They are constantly moving randomly. The particle of gas hits the walls of the container thereby applying force and hence pressure on the wall.
(c) The wooden table has a definite shape and a definite volume. The particles of wood are closely packed. They do not take the shape of the container. Hence wooden table satisfies the properties of solid.
(d) The particles of air are very loosely bounded. They are far away from each other having a lot of space between them. Hence we can easily move our hands in the air. But in a solid block, the particles are tightly held by a strong force of attraction. So there is some or no space between them. Hence we need a karate expert.
Answer:
Gas fills the vessel completely in which it is kept due to the nominal force of attraction between the gas particles. ... Gas particles collide with the walls of the container due to the high presence of kinetic energy. The Less intermolecular force of attraction and high kinetic energy makes them exert pressure.