The aim of this course is to introduce to the students, the laws concerning the heat and mass transfer processes, as well as the methods for calculating fundamental transport quantities. It offers the basic knowledge on which Physical and Chemical Process Design courses will be based in the following semesters. Unit included: Heat transfer mechanisms. Thermodynamics. Macroscopic balances. Transfer by Action. Thermal Conductivity (solids, liquids, gases). Fourier Law. Heat equation. Thermal Resistance. Integrated form of Heat Equation. Composite Walls (planes - cylindrical - spherical). Heat transfer from expanding surfaces. Efficiency - Effectiveness. Mass transfer. Mixtures, definitions. Fick diffusion law. Diffusion – Advection. Diffusion Equation. Diffusion with Homogeneous, Heterogeneous Reaction, etc.