Question

What is Boyle's temperature?

Answer 1

Boyle temperature:

• “The temperature at which a real gas obeys ideal gas law over an appreciable range of pressure is called Boyle temperature”.
• For a given gas, this temperature is dependent upon the nature of the gas.
• Boyle temperature (TB) is related to the Van der Waal’s constant a, b as given below. At this temperature, the attractive and repulsive forces acting on the gas particles arrive at a balance for a real gas.

$\mathrm{TB}=\frac{a}{Rb}$

Conditions:

• At higher Boyle's temperature, gases can easily be liquefied.
• At lower Boyle's temperature, gases are difficult to liquefy.