Question

In gases, particles vibrates
a.) About their mean position
b.) About a vertical axis
c.) About a horizontal axis
d.) In any direction

Answer 1

Gases have no specific shape because the particles of the gases are very less tightly bound with each other so they have the tendency to flow.

Complete step by step answer:
Matter is classified into three states; Solid, Liquid and Gas. Solid particles have fixed shape due to large interatomic forces of the particles, liquid have no fixed shape as particles are less tightly bound while gaseous particles have very less forces of attraction which helps it to flow everywhere.
We come to know what is being cooked in the kitchen without even entering there. This is because of the smell that reaches our nostrils. The particles of the smell of food mix with the particles of air spread from the kitchen and reach us and even farther away. This property of gas occurs due to high speed of particles and large space between the particles. In the gaseous state the particles move about randomly at high speed. Due to this random movement the particles hit each other and also the walls of the container and can move freely in any direction. It is necessary for gases to have some medium to flow.
So, we conclude that particles of gases can move or vibrate in any direction.
So, the correct answer is “Option D”.

Note: Gases are everywhere like if we take the example of atmosphere it is full of gases where gases can flow everywhere not only in any particular direction.