Question

What is the scale based on absolute zero?

Answer 1

Kelvin scale is based on absolute zero. Thus, we also call it Absolute scale of temperature.

It is defined as the temperature scale with absolute zero(zero Kelvin) as the starting point.

Absolute zero=0K=-273℃

Answer 2

Absolute zero is defined as 0 K on Kelvin scale, which is thermodynamic(absolute).

Therefore on Celsius scale it would be defined as -273degree Celsius.