Why gas molecule exerts pressure inside the container?

Give reasons :- A gas exerts pressure on the walls of the container.

Excess pressure inside a bubble is

Why does a gas exert pressure on the wall of its container?What are the two factors on which this pressure depends?

What is the cause of excess pressure inside a soap bubble?

Why is osmotic pressure considered to be a colligative property?

What is the pressure inside the drop of mercury of radius 3.00 mm at room temperature? Surface tension of mercury at that temperature (20^@C) is 4.65 xx 10^-1 N m^-1 . The atmospheric pressure is 1.01 xx10^-5 Pa. Also give the excess pressure inside the drop.

What is the net force acting on the molecule of water, when it is fully inside the water?

Pressure of gas is due to-