Question

Q1: Describe convection, conduction and radiation,​

Answer 1

Explanation:

Convection : When a fluid, such as air or a liquid, is heated and then travels away from the source, it carries the thermal energy along. This type of heat transfer is called convection.

Conduction : Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules. Conduction occurs more readily in solids and liquids.

Radiation : Heat transfer by thermal radiation is transfer of heat by electromagnetic waves. It is different from conduction and convection as it requires no matter or medium to be present.

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Answer 2

Explanation:

Convection:-

Mode of transfer of heat, in liquids and gases, in which molecules themselves move to carry heat is known as convection.

Conduction:-

Mode of transfer of heat in solids in which heat moves from molecule to molecule without any movement of the molecules themselves is known as conduction.

Radiation:-

Mode of transfer of heat which does not require any material medium is known as radiation.

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