The moving away of molecules close to a source of heat and of those molecules which are away from the source of heat towards the source is called ____________.

Convection

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Diffusion

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Conduction

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Explosion

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Solution

The correct option is A
Convection

Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it. Convection above a hot surface occurs because hot air expands, becomes less dense, and rises.

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The moving away of molecules close to a source of heat and of those molecules which are away from the source of heat towards the source is called ____________.

The movement of molecules close to a source of heat away from it and of those molecules which are away from the source of heat towards the source is called ____________.

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The moving away of molecules close to a source of heat and of those molecules which are away from the source of heat towards the source is called ____________.

The correct option is A Convection Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it. Convection above a hot surface occurs because hot air expands, becomes less dense, and rises.

The correct option is A
Convection

Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it. Convection above a hot surface occurs because hot air expands, becomes less dense, and rises.