Difference between conduction and convection
Conduction |
Convection |
When the transfer of heat takes place between the objects through the direct contact is called as conduction. | The transfer of heat through the liquid is known as convection. |
The rate of transfer of the heat is slow in the conduction system.
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The rate of transfer of the heat in the convection system is faster than the conduction. |
In the conduction the transfer of heat takes place because of the difference between the temperature of two system. | In the convection the transfer of the heat takes place due to the difference between the densities of two system. |
In the conduction the flow of heat is from the high temperature region to the low temperature region. | In the convection the transfer of the heat takes place from the region of low density to the region of high density. |
In the conduction the transfer of heat takes place between the two solids. | In the convection the transfer of heat takes place between the two objects which are in contact. Example of these is – transfer of heat between the air and water or water and solid. |
The heat transfer is takes place by direct and the physical contact.
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The transfer of the heat in the convection takes place due to the motion of the fluid. |
In the solids the conduction takes place due to the collision of the molecules, the solid matter does not move actually. | In the convection the transfer of heat takes place through the actual flow of matter. |