Physical Chemistry covers the ‘physical properties’ of chemical compounds using law and various concepts of Physics, such as motion, energy, force, time, statistical mechanics, quantum chemistry and thermodynamics. This is one of the most exciting branches of Chemistry which allows students to understand the physical characteristics of chemical compounds like temperature, volume, pressure, conductivity, plasticity, strength, surface tension in liquids, solubility, viscosity, boiling point, melting point and colour. The subject is studied using various mathematical models and formulas.