In an ideal gas mixture, fugacity of a species is equal to its___________________?
Correct answer: B. Partial pressure
- A. Vapor pressure
- B. Partial pressure
- C. Chemical potential
- D. None of these
Explanation
For an ideal-gas mixture, the fugacity of component i equals its partial pressure, fᵢ = yᵢP. Vapor pressure applies to a pure condensable phase, while chemical potential is related to fugacity but is not equal to it.
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