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In What Ways Can Heat Energy Be Transferred From One Substance To Another?

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Background
The law of conservation of energy is energy that can be transferred from one object to another. Energy cannot be destroyed nor created therefore; it can be changed from one form of energy to another type of energy. It signifies that energy might be passed on or wasted, but it can never be lost. In addition, if an object has wasted its energy, it is always gained by another object, commonly heat.

The kinetic theory of matter is that substances are comprised of a large number of small particles (individual atoms or molecules) that are constantly active. For example, solids are made of particles that are closely packed together, vibrating constantly. As it heats up with thermal energy, the solid phase is changed into a liquid state …show more content…

These three ways are portrayed by conduction, convection and radiation.

Conduction: Conduction transpires when two materials or objects with different temperatures are in contact with one another. This is the motion of heat through a substance by the conflict of molecules. Conduction takes place when two objects meet and the warmer object colliding into the less warm object (the particles are slower because of the minimum amount of energy received). As this occurs, the warmer objects gives off some of its rapid molecules to the slower molecules. Resulting, the slower object gaining more thermal energy and allowing it to collide with the faster molecules to spread out the temperature.

Convection: Regarding to liquids and gases, convection is the most energy efficient style to transfer heat to another object. This occurs when the warm part of the solids of gases rises up to the cooler areas of the solid or gas. While it takes place, the opposite occurs - the cooler areas of the solid or gas mixes with the warmer parts that have risen upwards. Moreover, this results in a sustained circulation. An example is when boiling water in a pan; you observe the bubbles rising up. Consequently, the warmer part of the water rises up to where the water is slightly …show more content…

Consequently, it was discovered that the aluminium can with cotton wool that acted as an insulator was discovered to be the best material as the final result was 69.5°C.7 This differed to the aluminium can without material as an insulator with a temperature of 62°C at nine minutes. The can with aluminium foil started off with a temperature of 73.5°C and slowly made it’s way to 65°C, proceeded it to be the second best insulator despite the material to have worked better at being a conductor. The can that had no materials was discovered to be the least efficient at trapping heat energy from hot water because one layer will not make a big difference as because aluminium is known to conduct heat better than insulating thermal

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