Both can occur through stationary media (conduction/diffusion) or moving fluids (convection). Key Concepts to Remember:
Just as there is a thermal boundary layer where temperature changes near a surface, there is a concentration boundary layer where the mixture composition changes. Real-World Example: Think of a cup of hot coffee : Transferencia de calor y masa
The water evaporates into the air (diffusion/convection) and, if you add sugar without stirring, it slowly spreads through the liquid (diffusion). if you add sugar without stirring
The mug gets hot (conduction) and steam rises (convection). Transferencia de calor y masa
In heat, atoms vibrate to pass energy. In mass, molecules physically migrate from high to low concentration areas.