State the postulates of kinetic theory of gases. Derive an expression for the pressure exerted by an ideal gas.

Derive an expression for the pressure due to a liquid column of height h.

Derive expression for pressure exerted by gas.

Find an expression for the total energy of a liquid.

Obtain an expression for the excess of pressure inside the liquid drop.

Derive an expression for the rise of liquid in a capillary tube and show that the height of the liquid column supported is inversely proportional to the radius of the tube.

Prove that there is always excess of pressure on the concave side of the meniscus of a liquid. Obtain an expression for the excess of pressure inside the liquid drop:

Find an expression for excess pressure inside a liquid bubble or soap bubble.

A bubble of gas released at the bottom of a lake increases to four times its original volume when it reaches the surface. Assuming that atmospheric pressure is equivalent to the pressure exerted by a column of water 10 m high, what is the depth of the lake?