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February 13, 2025Any matter made up of atoms and molecules has the ability to transfer heat. The atoms are in various states of motion at any time. The motion of atoms and molecules is responsible for heat or thermal energy and every matter has thermal energy. The more the molecules move, the more will be heat energy. Thus, the difference in temperature is considered to be a ‘potential’ that causes the transfer of heat from one point to another.
Heat can travel from one place to another in different ways. And, if the two systems have different temperatures, heat will find a way to transfer from the higher to the lower system. The different modes of heat transfer include conduction, convection and radiation. Check out the article to learn more about heat transfer and its three distinct ways of transfer.
According to thermodynamic systems, heat transfer is “The movement of heat across the border of the system due to a difference in temperature between the system and its surroundings.”
Heat is a curious form of energy. Heat transfer is a phenomenon that occurs when one object transfers heat to another. Generally, this happens from the object that is hot to the cold object. Even nuclear energy generates electricity by utilising the heat produced by the atom. Heat transfer can occur through three means, it includes:
Conduction is “The process of transmission of energy from one particle of the medium to another with the particles being in direct contact with each other”.
Conduction is also known as heat conduction or thermal conduction. A higher kinetic energy area transfers thermal energy to a lower kinetic energy area. When high-speed particles collide with slow-moving particles, the slow-moving particles gain kinetic energy. This is a common type of heat transfer that occurs through physical contact.
The transfer of heat by conduction occurs at a molecular level. Absorption of heat by a body causes the molecules of that body to gain energy. In the process of gaining energy and vibrating excessively, they bump into their neighbours and transfer a little of their extra energy to them. The extra energy appears in the neighbouring molecules and heats them up too. That is how heat is transferred as long as heat is being supplied.
Following are some of the examples of conduction:
The rate of thermal conductivity depends on the following factors:
Convection refers to the method of heat transfer that occurs usually in the liquid and gaseous states. According to this method, the transfer of heat energy takes place when there is an actual motion of the matter from one place in the body to another.
Examples of convection may include:
Radiation is a process of heat transfer which does not need any sort of medium and can easily be used for the transfer of heat in a vacuum. The process of heat transfer via radiation makes use of electromagnetic waves that tend to transfer the heat from one place to another.
Following are some examples of radiation:
We hope this article on Heat Transfer Thermal Conduction has helped you. Stay tuned to embibe.com for more informative articles.
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