This course covers the principles of thermal sciences and presents the calculations of work, heat for ideal gas and real gases at constant pressure or volume, the calculations of heat capacities, latent heats and thechanges of enthalpy and entropy. The first, second and third law of thermodynamics are investigated, as are the uses of tables and diagrams and the calculations of different types of heat reactions, residual properties, the calculations of the efficiency of different cycles, turbines, expanders and compressors.