Question

what do you mean by absolute zero temperature

Answer 1

Absolute zero is the lowest possible temperature. It is the point at which the atoms of a substance transmit no thermal energy - they are completely at rest.

It is zero degrees on the Kelvin scale, which translates to -273.15 degrees Celsius or -459.67 degrees Fahrenheit.

Answer 2

Absolute zero temperature is the last limit of the lowest temperature, where the volume of a given mass of dry enclosed gas at constant pressure becomes zero. Its theoretical value is -273°C. It can also be defined as theoretical temperature, when the molecules of an enclosed dry gas at constant pressure have zero kinetic energy, i.e., they stop vibrating.