Lye soap is a cleaning product that is made using lard, water, and lye. It was historically used around the world before commercially produced soaps became commonly available, and is still used by many people because of its potential benefits for skin and because of its all-natural recipe.
Definition of Heat Transfer. Heat transfer, also referred to simply as heat, is the movement of thermal energy from one thing to another thing of different temperature.
Convection is the main method of heat transfer in fluids such as water and air. It is often said that heat rises in these situations. The more appropriate explanation is to say that heated fluid rises. For instance, as the heated air rises from the heater on a floor, it carries more energetic particles with it.