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Setler [38]
3 years ago
15

What is the definition of the fugacity coefficient for a pure component, and its condition at the ideal gas state?

Chemistry
1 answer:
inn [45]3 years ago
4 0

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.

f_{i} = a_{i} x 1bar

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) :

f_{i} = Ф_{i} x P_{i}

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  ⇒  f_{i} =P_{i}

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