Question

Have a look for heating and cooling processes at your home. Observe them carefully to find that how the heat is being transferred in these processes. Make a chart of any five such processes along with the mechanism of heat transfer in it.

Answer 1

Five examples of heat transfer processes are as follows:

Explanation:

• 1) Transfer of heat from the hot coffee mug to the hands of the person holding it. This effect arises due to the conduction of heat.
• 2) When heat is transferred as cold milk is steamed to make cocoa. This process occurs due to the convention property of heat.
• 3) Another heat transfer process is the transfer of heat to the food in the microwave oven. This process occurs due to radiation.
• 4) An air condition cools the air due to the cool air being transferred to the whole room by convection.
• To bake a cake at home, radiation is used.