Question

What is the kelvin temperature scale?

Answer 1

Hint : In instrumentation, a temperature scale is a means of calibrating the physical quantity temperature. Temperature is measured using empirical measurements in relation to convenient and stable parameters like the freezing and boiling points of water.

Complete step-by-step solution:
Fahrenheit, Celsius, and Kelvin are the three temperature scales currently in use. The Fahrenheit temperature scale is based on the freezing point of water being ${32^ \circ }F$ and the boiling point of water being ${212^ \circ }F$ , with the difference between the two being split into 180 bits.
A temperature scale with an absolute zero below which no temperatures exist is known as the Kelvin temperature scale. Absolute zero, or ${0^ \circ }K$ , is the temperature at which molecular energy is at its lowest, which corresponds to a temperature of ${273.5^ \circ }C$ . Scientists use the Kelvin temperature scale because they needed a scale where zero represents the total absence of thermal energy.
Kelvin is often used to determine colour temperature and is often used in lighting. Kelvin temperature represents the colour temperature relative to an object's physical temperature, such as white, blue, or bright red, in a lighting application.

Note: The Kelvin scale is identical to the Celsius scale in terms of temperature. In the Celsius scheme, ${0^ \circ }$ is the freezing point of water. The Kelvin scale's zero point, however, is defined as the coldest possible temperature, also known as "absolute zero." $- {273.15^ \circ }C( - {459.67^ \circ }F)$ is absolute zero.