High School

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Heat transfer in liquids and gases takes place by ________

A) Conduction only
B) Convection only
C) Radiation only
D) Conduction and convection

Answer :

Final answer:

Heat transfer in liquids and gases primarily occurs through conduction and convection, with conduction involving direct contact and convection involving the movement of fluid currents.D) Conduction and convection

Explanation:

Heat transfer in liquids and gases takes place by two primary methods: conduction and convection. Conduction is the process of heat transfer through direct contact of particles without any overall transfer of mass. For example, heat is transferred from the burner of a stove through the bottom of a pan to food by conduction. On the other hand, convection involves the movement of warmer particles within a fluid which can be a liquid or a gas, creating a current that can transport heat. An example of convection is the heat transfer within the atmosphere, where warm air rises and cooler air descends.

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