It is the lowest temperature that theoretically can be achieved and at which the particles of an object would become motionless. In this unit zero is the absolute minimum temperature that a particle can have, and Kelvin is used to setting the zero point of the temperature scale at absolute zero.so In this unit, absolute zero is 0 K. The Kelvin unit is most commonly accepted or used in the field of science and engineering. Kelvin is the standard international unit (SI unit) for temperature which is indicated by the symbol K. The three most common temperature units used today are the Fahrenheit, Celsius, and Kelvin units. Temperature is measured with different units. For instance, the temperature at the surface of the sun is 5800 kelvins, but the temperature inside it is up to 13.6 million kelvins.īut there is a very specific limitation for the low end of temperature which is the absolute zero temperature, the lowest possible temperature that possibly cannot ever be achieved. There is not any limitation for high temperatures, and it is possible to achieve a very high temperature. There are several different scales and units that have been developed during the recent centuries and used in different parts of the world. We should use a more specific way to indicate temperature because the terms hot and cold are not very accurate or scientific. This is expressed as an increase in the temperature of the object. When heat is added to an object, some absorbed energy is stored within the particles, while some kinetic energy increases the motion of the particles. The temperature of an object is associated with the average kinetic energy of the particles of that object. Therefore, the more kinetic energy the particles of an object have, the temperature of the object is higher. The faster the particles are in motion, the more energy they have. This kinetic energy is a type of energy related to motion. So the temperature is defined as a measure of the average kinetic energy of its atoms and molecules. Because the particles of the object are moving, they have kinetic energy. All materials are made of particles - atoms or molecules that are in constant motion, vibrating, or rotating. Temperature refers to intensive quantity and it is the way of determining the energy state of particles within an object.
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