At zero kelvin (

**minus**273 degrees**Celsius**) the particles stop moving and all disorder disappears. Thus, nothing**can**be colder than absolute zero on the Kelvin scale. Physicists**have**now created an atomic gas in the laboratory that nonetheless has**negative**Kelvin values.Subsequently, one may also ask, is negative Celsius cold or hot?

It is set so that pure water freezes at zero degrees Celsius and boils at

**one hundred degrees Celsius**. And with**100 degrees**between those points, we can specify temperatures using 1 or 2 digit positive numbers. When the temperature is negative, i.e. below**0 °C**, then we know that it is so cold that water will freeze.Can temperature be lower than absolute zero?

At the physically impossible-to-reach

**temperature**of**zero**kelvin, or minus 459.67 degrees Fahrenheit (minus 273.15 degrees Celsius), atoms would stop moving. As such, nothing**can**be**colder than absolute zero**on the Kelvin scale.