Answer:
For thermodynamics the fugacity (fi) of a non ideal gas is defined as the product between the activity (ai) of the gas and 1 bar of pressure.
Explanation:
For thermodynamics the fugacity (fi) of a non ideal gas is defined as the product between the activity (ai) of the gas and 1 bar of pressure.
[tex]f_{i} = a_{i} x 1bar[/tex]
Also, in a gas mixture the fugacity (fi) of every component of the mixture is define by a coefficient of fugacity (Фi) multiplied by the partial pressure of the gas (Pi) :
[tex]f_{i} =[/tex] Ф[tex]_{i} x P_{i}[/tex]
The coefficient of fugacity (Фi) is a measure of the deviation from the ideality of the gas. Thus, for an ideal gas Фi = 1 and the fugacity (fi) turns equal to partial pressure:
If Фi = 1 ⇒ [tex]f_{i} =P_{i}[/tex]
