Derive Meyer's relation.

State Newton's law of cooling verify with an experiment.

Explain postulates of the kinetic theory of gases.

From a certain apparatus, the diffusion rate of hydrogen has an average value of 28.7 cm³/s, The diffusion of another gas under the same condition is measured to have an average rate of 7.2 cm³/s. Identify the gas.

An air bubble of volume 1.0 cm² rises from the bottom of a lake 40 m deep at a temperature of 12°C. To what volume does it grow when it reaches the surface which is at a temperature of 35°C?