Question

State the mode/different modes, of heat transfer, in the following situations.
undly thermometer?
(a) A paper cup, full of hot soup, lying on a table.
(b) Cooking vegetables in a pan
(c) Melting of a chocolate bar, in the school bag, on a hot day.
(d) Cooking food in a microwave oven.​

Answer 1

Answer:

a)clinical thermometer

b)laboratory thermometer

c)min max thermometer

d)Laboratory thermometer

Answer 2

Answer:

The mode of heat transfer is as follows:

(1) A paper cup, full of hot soup, laying on a table - convection

It is usually the mode of heat transfer in liquids and gases.

(2) Cooking vegetables in a pan- conduction

The pan, which is in direct contact with the heat source, transfers the heat to the vegetables.

(3)- Melting of a chocolate bar, in the school bag, on a hot day- conduction

Conduction of heat takes place from the surroundings to the bag and finally to the chocolate.

(4) Cooking food in a microwave oven- Radiation

It is the mode of heat transfer in which there's no direct contact between the heat source and the molecules to be heated.

Explanation: