Compressibility factor for a real gas at high pressure-

Compressibility factor of an ideal gas is -

What is Boyle temperature? What would be the value of compressibility factor of a real gas in the low pressure region at its boyle temperature?

At Boyle's temperature , compressibility factor Z for a real gas is

At Boyle's temperature , compressibility factor Z for a real gas is

The compressibility factor for an ideal gas is

The compressibility factor for an ideal gas is