Human beings can create a high temperature of 5.5 trillion degrees Celsius, why can’t they reach -273.15 degrees Celsius?

01. What is -273.15℃

We know that the unit of the temperature scale in thermodynamics is K, which is Kelvin. The degrees Celsius we are talking about now are the units of the Celsius temperature scale. The relationship between degrees Celsius and Kelvin is T (K) = t (℃) 273.15. Then -273.15 degrees Celsius means 0 degrees Kelvin. This temperature is the lowest temperature in thermodynamics. It should be noted that this is only a theoretical value.

The derivation of this temperature involves the famous ideal gas equation of state. In the equation, when the temperature reaches absolute zero, which is minus 273.15°C, the volume of the gas becomes zero. . In this case, any of our existing theories cannot be studied, or all theories have become fallacies. Absolute zero is a value that is impossible to reach and can only be infinitely close. Just kidding, even if it is really reached , we can’t observe it either. 02. The speed of atomic movement reflects the temperature.

The faster the atoms move, the higher the temperature. If the temperature is relatively low, it means that the atoms move slowly. If we continue to cool it down, the motion of the atoms will gradually become stationary. When the temperature truly reaches absolute zero, all atoms will stop moving completely, and kinetic energy and potential energy will no longer exist. But here comes the problem, energy will not disappear out of thin air. Absolute zero means that both temperature and energy are gone, which is an unattainable state. Even the light we see now may no longer exist in a world of absolute zero, and everything will turn into nothingness. This is no joke. Because according to the existing theory, this is indeed the case. We cannot imagine a world where energy and heat do not exist. Therefore, humans can only approach this absolute zero infinitely, but cannot reach it.