What are the molecular compositions and structures of the reactants and products in a reaction ? What is the stoichiometry of the reaction and what is the extent of conversion to products? How long does it take for the reaction to reach equilibrium and what are the factors that affect the time for this to be achieved? What is the molecular process by which the reaction occurs - on a molecular scale, how does the reaction occur? This module sets up the techniques to describe and measure the kinetics of chemical processes.