Temperature relevant coordinates are fixed. An exceptionally suitable system is the ideal gas, which can provide a temperature scale that matches the absolute Kelvin scale. The Kelvin scale is defined on the basis of the second law of thermodynamics. In the previous section certain properties of temperature were expressed by the zeroth law of thermodynamics. It is also possible to define temperature in terms of the second law of thermodynamics which deals with entropy. The second law states that any process will result in either no change or a net increase in the entropy of the universe. This can be understood
Absolute Zero (film) the atmospheric pressure in the affected zone to drop to zero. The remaining atmosphere would move to this zone and soon Earth would have no gaseous atmosphere, with a surface pressure of zero. None of these events occur in the film, although there is a drastic drop of pressure happening at the end of the film. It is impossible to reach absolute zero naturally, nor would a movement of the poles induce any reduction in Earth temperatures. However, this is explained away in the film as being a previously unknown effect. Furthermore, extremely low temperatures, at or near absolute zero,