Distinguish, differentiate, compare and explain what is the Difference between Conduction, Convection and Radiation. Comparison and Differences.
What is Conduction ?
Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules
What is Convection ?
Convection is the phenomenon through which heat is transfer due to the movement of particles in the fluids like liquids and gases.
What is Radiation ?
Radiation differs from Conduction and Convection heat t transfer mechanisms, in the sense that it does not require the presence of a material medium to occur. Energy transfer by radiation occurs at the speed of light and suffers no attenuation in vacuum. Radiation can occur between two bodies separated by a medium colder than both bodies.
Difference between Conduction, Convection and Radiation
| S.No. | Conduction | Convection | Radiation |
| 1 | Conduction is the transfer of heat by direct physical contact. | Convection is the transfer of heat by the motion of a fluid. | Radiation is the transfer of heat by electromagnetic waves. |
| 2 | It is due to temperature difference. Heat flows from high temperature region to low temperature region. | It is due to difference in density. Heat flows from low density region to high density region. | It occurs from all bodies at temperatures above 0 K. |
| 3 | It occurs in solids through molecular collisions, without actual flow of matter. | It occurs in fluids by actual flow of matter. | It can take place at large distances and does not heat the intervening medium. |
| 4 | Conduction is a slow process. | Convection is a slow process. | Radiation propagates at the speed of light. |
| 5 | Conduction does not obey the laws of reflection and refraction. | Convection does not obey the laws of reflection and refraction. | Radiation obeys the laws of reflection and refraction. |
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Difference between Radiation vs Conduction, Convection
Conduction, Convection vs Radiation
Differences between Radiation vs Conduction, Convection
