Fugacity and pressure are numerically equal, when the gas is____________________?
Correct answer: B. In ideal state
- A. In standard state
- B. In ideal state
- C. At low temperature
- D. At high pressure
Explanation
For an ideal gas, the fugacity coefficient is unity, so fugacity is numerically equal to pressure. Real gases depart from this equality because intermolecular forces and finite molecular volume affect their fugacity.
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