Question

In absolute scale, temperature is expressed in ________.

Answer 1

Temperature scales:

1. Temperature is the measure of the amount of heat energy exerted by an object.
2. There are three scales used in the world nowadays to measure temperature: the Fahrenheit ($°F$) scale, the Celsius ($°C$) scale, and the Kelvin ($K$) scale.
3. Every scale uses a different set of divisions based on different reference points.

Explanation:

1. A temperature scale, zero of which is equivalent to $\left(-273.15K\right)$ and $373.15K$ is equivalent to $100°C$, is called the absolute scale of temperature and $\left(-273.15K\right)$ is called absolute zero.
2. Absolute temperature is used widely in the application of the ideal gas law and many other laws of thermodynamics.

Thus, the temperature is expressed in kelvin on the absolute scale.