This meticulously revised and updated edition of this most acclaimed book for last three decades presents the fundamentals of Stoichiometry in a simple and forthright manner and provides the broad background for applying these principles to industrial and theoretical problems. Salient Features Detailed discussions on material and energy balances of unsteady state operations Includes new topical coverage on Hess's law for Standard Enthalpy of Formation Heat effects of Absorption with Chemical Reactions Multicomponent condensation of real (non-ideal) systems and its effect on design of process equipments Development of Enthalpy-Concentration chart for different systems Use of pure component pressure in deriving properties of real gases Symbols and conversions updated as per the recommendations made by IUPAC Unique chapter on Stoichiometry and Digital Computation Use of Matrix Algebra in solving material balance problems with mathematical software such as MATHCAD Rich Pedagogy 202 Solved examples 337 Exercises