Transport Phenomena | Dr. Ray’s Learning Center · Free course

Mass moves through gases, liquids, pores and solids whether we plan for it or not. Solvent escapes from a vent line, a catalyst pellet starves at its core, and a board dries from the outside in. This free course builds the tools for predicting how fast that happens. Each lesson follows the same pattern: concept → formula → fully worked solution → practice → answer check, with an interactive simulator wherever one helps you see the equation respond.

The course has three parts: Momentum Transport, Heat Transport and Mass Transport. Mass Transport is the current focus, in three topics: Diffusion through a still gas, liquid or solid, Convective Mass Transfer between a surface and a moving fluid, and Interphase Mass Transfer across a gas and liquid interface. Every lesson points to the matching pages in Perry’s Chemical Engineers’ Handbook, 9th edition, so keep your copy open: that is where the property data and working equations live.

The simulators are learning aids, not answer machines. Use them to build intuition and to check your own hand or spreadsheet work.