Pressure is the result of elastic collision of molecules with the container's wall.
Molecules are separated by great distances compared to their sizes.
All the molecules move in straight line between collision and with same velocity.
Molecules move very fast in all directions in a straight line by colliding with each other but with different velocity.
So, the correct option is (D): All the molecules move in straight line between collision and with same velocity.
Intermolecular forces are forces of attraction and repulsion between interacting paiticles that will include :
NaOH is deliquescent
The matter is made up of very tiny particles and these particles are so small that we cannot see them with naked eyes.
The three states of matter are as follows: