Question

define absolute zero temperature

Answer 1

Hey There! Absolute zero is the lowest possible temperature where nothing could be colder and no heat energy remains in a substance. By international agreement, absolute zero is defined as precisely; 0 K on the Kelvin scale, which is a thermodynamic temperature scale; and –273.15 degrees Celsius on the Celsius scale.

Answer 2

$\large\boxed{\mathbf{Absolute\: Zero = -273.16 \: Kelvin}}$

=> It is the lowest temperature and is physically impossible to achieve.

=> If achieved, Particle motion is said to get stopped at Absolute zero.

=> Since, particle motion will get stopped at Absolute Zero, Nothing can get more colder than this on Kelvin Scale.

=> The minimum temperature achieved by Humans is -273.15 k (approx.)