Question

Look at figure. Mark where the heat is being transferred by conduction, by convection and by radiation.

Answer 1

Heat is being transferred in the steel vessel by conduction.

Heat is being transferred from vessel to water by conduction.

Heat is being transferred from vessel to surroundings by radiation.

Answer 2

Heat transfer

• In a substance, heat transfer occurs by three mechanisms namely conduction, convection, and radiation.
• In the given figure, in which water is heated on the flame, the three mechanisms occurs at different places.
• The process of convection occurs inside the vessel due to which particles of the water experience high kinetic energy.
• The process of conduction occurs at the handle with which the vessel is lifted.
• The process of radiation occurs at the bottom of the vessel where the flame is placed.

Learn more about heat transfer

Explain heat transfer process in conduction, convection, radiation.

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State the mode/different modes, of heat transfer in the following :- (1)- A paper cup, full of hot soup, laying on a table .

(2)- Cooking vegetables in a pan .

(3)- Melting of a chocolate bar, in the school bag, on ahot day. (4)- Cooking food in a micro wave oven .

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