The+absolute+scale+of+temperature

__**The absolute scale of Temperature**__

This is also called the Kelvin scale of temperature and starts at absolute zero.

Absolute zero is the lowest temperature possible. It is 0K or -273°C.

The pressure of a gas is not directly proportional to Celsius temperature, it does not pass through the origin, but it the gas were extended back to zero pressure this is -273°C for all gases, therefore this is the lowest temperature possible and on the Kelvin scale this is zero.





To find the Kelvin temperature (T) you add 273 to the Celsius temperature (θ)

T/K = θ/°C + 273

A graph of pressure against kelvin temperature will go straight through the origin.

Josie Wall 12N