Question

explain heat transfer using convection class 11 in simple words​

Answer 1

Answer:

Heat convection is a mode of heat transfer by the mass motion of a fluid such as air. Heat convection occurs to the surface of an object where the surrounding fluid of object is heated and moved energy away from the source of heat.

Convective heat transfer is the transfer of heat between two bodies by currents of moving gas or fluid. In free convection, air or water moves away from the heated body as the warm air or water rises and is replaced by a cooler parcel of air or water.

Explanation:

Answer 2

Explanation:

CONVECTION is a process by which heat flows from the region of higher temperature to the region of lower temperature by the actual movement of material particles.Generally, fluids are heated by this process.

convection is of 2 types:-

•NATURAL CONVECTION-if the material moves due to difference in density,the process of heat transfer is called natural convection.

eg.-different types of winds in the atmosphere

•FORCED CONVECTION-if the heated material is forced to move by an agency like a pump or blower,the process of heat transfer is called forced convection.

eg.-air conditioning