Question

Explain the three modes of heat transfer?​

Answer 1

Answer:

• There are three modes of heat transfer: conduction, radiation, and convection.
• Conduction and radiation are fundamental physical mechanisms, while convection is really conduction as affected by fluid flow.
• Convection may be described as conduction in a fluid as enhanced by the motion of the fluid.

Explanation:

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Answer 2

$\mathfrak{\bf{\underline{\underline{Modes \: Of \: Heat \: Transfer :}}}}$

Conduction :

Conduction is the method of transfer of heat within a body or from one body to the other due to the transfer of heat by molecules vibrating at their mean positions. The bodies through which the heat transfer must be in contact with each other. There is no actual movement of matter while transferring heat from one location to the other.

Radiation :

Radiation is another form of heat transfer. It does not require any medium and can be used for transfer of heat in a vacuum as well. This method uses electromagnetic waves which transfer heat from one place to the other. The heat and light from the sun in our solar system reach our planet using radiation only.

Convection :

Convection is the mode of heat transfer which occurs mostly in liquids and gases.In this method, heat transfer takes place with the actual motion of matter from one place within the body to the other. Often when we boil water we have seen bubbles and currents develop in the water on careful observation.