Question

What number is absolute zero on the Kelvin scale?

Answer 1

Hint: There are three types of scales for measuring the temperature of any system, i.e., Degrees Celsius, degrees Farhnenite, and Kelvin. All the scales can be converted into each other. The value of absolute zero on the Degrees Celsius scale is -273. For finding the Kelvin, we can add 273 to the value of temperature in degrees Celsius.

Complete answer:
There are many properties of the substance that are measured and these properties are pressure, volume, temperature, energy, etc. So, the temperature is one of the important properties of the substance. There are three types of scales for measuring the temperature of any system, i.e., Degrees Celsius, degrees Fahrenheit, and Kelvin. All the scales can be converted into each other.
The given temperature in the degrees Celsius can be converted into degrees Fahrenheit by using a formula:
$F=\left( \dfrac{9}{5} \right)C+32$
And if the temperature wanted to be converted into Kelvin, then we can write:
K = C + 273
So, the given temperature is absolute zero and we know that the value of absolute zero on the Degrees Celsius scale is -273. This can be converted into Kelvin form as:
K = -273 + 273 = 0
So, the value of the absolute temperature of the Kelvin scale is 0 K.

Note:
The third law of thermodynamics uses the absolute temperature in its statements and it states that at absolute temperature the entropy or randomness of the system becomes constant or zero.