Uncommon
Thermal conduction
Process by which heat is transferred within an object
Thermal conduction
In thermodynamics, thermal conduction is the diffusion of thermal energy (heat) within one material or between materials in contact. The higher temperature object has molecules with more kinetic energy; diffusion among molecules distribute this kinetic energy until an object has the same kinetic energy throughout. Thermal conductivity, represented by k, is a property that relates the rate of heat loss per unit area to its rate of change of temperature. It accounts for any property that could change the way a material conducts heat. Heat spontaneously flows along a temperature gradient (i.e. from a hotter body to a colder body). For example, heat is conducted from the hotplate of an electric stove to the bottom of a saucepan in contact with it. In the absence of an opposing external driving energy source within a body or between bodies, temperature differences decay over time, and thermal equilibrium is approached. Every process involving heat transfer takes place by one of three methods...
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