The temperature at which the pressure and volume of a gas theoretically reach zero is called absolute zero.
Variation of pressure with temperature
At a temperature of \(–273.15\) \(°C\), the pressure extrapolates to zero for all gases. It is called n as absolute zero or \(0\) \(K\). Some baseline temperatures in the three temperature scales are shown below.
|Boiling point of water||\(373.1\)||\(100\)||\(212\)|
|Melting point of ice||\(273.1\)||\(0\)||\(32\)|
We can convert the values from one unit to another unit by using the formula,
a) Convert \(30\)\(°C\) to \(Kelvin\)
b) Convert \(240\) \(K\) to \(°C\)