Absolute Zero could be defined in
different ways as follows:

Absolute Zero is a state of
minimum molecular movement

Absolute zero is that temperature
at which disorder of a system reaches its minimum value.

Absolute Zero is a state of zero
Entropy.

Absolute Zero is the temperature
at which a “Heat Engine” can operate at 100 percent efficiency.

Absolute zero is the point where
no more heat can be removed from a system, according to the absolute or
thermodynamic temperature scale. This corresponds to 0 K or -273.15°C. In
classical kinetic theory, there should be no movement of individual molecules at
absolute zero.

A system at absolute zero will
not have enough energy for transfer to other systems. It is therefore correct
to say that molecular kinetic energy is minimal at absolute zero i.e; the
motion of molecules in a system is least at absolute zero

Absolute zero is defined as 0 (zero) K on the Kelvin scale and as −273.15°C on the Celsius scale. This equates to −459.67°F on the Fahrenheit scale.

Absolute zero is defined as 0 (zero) K on the Kelvin scale and as −273.15°C on the Celsius scale. This equates to −459.67°F on the Fahrenheit scale.

The third law of thermodynamics
says absolute zero is not obtainable in a finite number of steps (and it is
impossible to practically have an infinite number of steps.

You couldn't send a current
through a wire at absolute zero because the electrons would not move.

The critical point when there is more resistance is absolute zero itself.

The critical point when there is more resistance is absolute zero itself.

The ideal gas law says that
PV=nRT. This means that in order for the temperature to be 0 (absolute 0), P or
V would have to be zero. An actual gas cannot have a Pressure or Volume of zero
and still have mass. This is a reason while absolute zero is unobtainable.