Fundamental concepts, Units and Dimensions, gas relationship, molarity, molality, normality, partial pressure, pure  volume and the related calculations. fundamental concepts of material balance. Material balance in various unit processes and unit operations. Material balance with chemical reactions Energy balance related to various process equipment. Calculation of standard heat of reaction from the heat of formation and heat of combustion, thermochemistry, energy balance in various unit operations, the heat of solutions, the heat of neutralization etc. Fuels and combustion calculation, proximate and ultimate analysis, adiabatic reaction temperature, air to fuel ratio, complex processes calculation.