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  2. Heat current - Wikipedia

    en.wikipedia.org/wiki/Heat_current

    A heat current or thermal current is a kinetic exchange rate between molecules, relative to the material in which the kinesis occurs. It is defined as the net rate of flow of heat . The SI unit of heat current is the watt , which is the flow of heat across a surface at the rate of one Joule per second.

  3. Newton's law of cooling - Wikipedia

    en.wikipedia.org/wiki/Newton's_law_of_cooling

    The law is frequently qualified to include the condition that the temperature difference is small and the nature of heat transfer mechanism remains the same. As such, it is equivalent to a statement that the heat transfer coefficient, which mediates between heat losses and temperature differences, is a constant.

  4. Sources and sinks - Wikipedia

    en.wikipedia.org/wiki/Sources_and_sinks

    In thermodynamics, the source and sinks correspond to two types of thermal reservoirs, where energy is supplied or extracted, such as heat flux sources or heat sinks. In thermal conduction this is described by the heat equation. [10] The terms are also used in non-equilibrium thermodynamics by introducing the idea of sources and sinks of ...

  5. Thermal conduction - Wikipedia

    en.wikipedia.org/wiki/Thermal_conduction

    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 ; collisions between molecules distributes this kinetic energy until an object has the same kinetic energy throughout.

  6. Convection (heat transfer) - Wikipedia

    en.wikipedia.org/wiki/Convection_(Heat_transfer)

    Convection (or convective heat transfer) is the transfer of heat from one place to another due to the movement of fluid. Although often discussed as a distinct method of heat transfer, convective heat transfer involves the combined processes of conduction (heat diffusion) and advection (heat transfer by bulk fluid flow ).

  7. Heat - Wikipedia

    en.wikipedia.org/wiki/Heat

    The molar heat capacity is the heat capacity per unit amount (SI unit: mole) of a pure substance, and the specific heat capacity, often called simply specific heat, is the heat capacity per unit mass of a material. Heat capacity is a physical property of a substance, which means that it depends on the state and properties of the substance under ...

  8. 17 Easy & Cozy Breakfasts for Winter - AOL

    www.aol.com/17-easy-cozy-breakfasts-winter...

    These cozy breakfast recipes, like sweet potato toast and oatmeal, take under 20 minutes to prepare for a warm and nourishing meal to start your day.

  9. Thermal balance of the underwater diver - Wikipedia

    en.wikipedia.org/wiki/Thermal_balance_of_the...

    Surface heat loss may be reduced by insulation of the body surface. Heat is produced internally by metabolic processes and may be supplied from external sources by active heating of the body surface or the breathing gas. [2] Radiation heat loss is usually trivial due to small temperature differences, conduction and convection are the major ...