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In a Room Containing Air, Heat Can Go from One Place to Another - Physics

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Question

In a room containing air, heat can go from one place to another

  • by conduction only

  • by convection only

  • by radiation only

  • by all the three modes

Solution

 by all the three modes

In conduction, heat is transferred from one place to other by vibration of the molecules. In this process, the average position of a molecule does not change. Hence, there is no mass movement of matter.
In convection, heat is transferred from one place to other by actual motion of particles of the medium. When water is heated, hot water moves upwards and cool water moves downwards.
In radiation process, transfer of heat does not require any material medium.
For a room containing air, heat can be transferred via radiation (no medium required) and convection (by the movement of air molecules) and by conduction (due to collision of hot air molecules with other molecules).

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APPEARS IN

 HC Verma Solution for Concepts of Physics - Vol. 2 (2018 to Current)
Chapter 6: Heat Transfer
MCQ | Q: 2 | Page no. 97
Solution In a Room Containing Air, Heat Can Go from One Place to Another Concept: Heat Transfer - Conduction.
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