Kinetic Theory Of Gases, And Properties Of Vapour

The experiments of James Joule during the 1840s proved beyond doubt that mechanical work and heat are equivalent. They also delivered the final blow to the caloric theory of heat.

The collapse of the caloric theory inspired three gentlemen – Rudolf Clausius, Clerk Maxwell and Ludwig Boltzmann – to develop the kinetic (or molecular) theory of gases. In the first decade of 20th century, investigation and explanation of Brownian motion of colloidal particles by Albert Einstein and Jean Perrin paved the way for the final acceptance of kinetic theory of heat. Although originally developed for gases, it can be extended to explain the thermal phenomena in solids and liquids as well.

This topic consists of video lectures on basic concepts of kinetic theory of heat, kinetic model of an ideal gas, pressure exerted by an ideal gas, root mean square speed (RMS speed), interpretation of temperature from kinetic theory, mean free path, Brownian motion, saturated and unsaturated vapours, properties of saturated vapour, phase diagrams, hygrometry etc.