A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is Φi yi P = Yi xi fi° where, Φ is a vapor fugacity component, Yi is the liquid activity co-efficient and fi° is the fugacity of the pure component i. the Ki value (Yi = Ki xi) is therefore, in general a function of?

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  1. Temperature only
  2. Temperature and pressure only
  3. Temperature, pressure and liquid composition xi only
  4. Temperature, pressure, liquid composition xi and vapour composition yi

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Answer: Option 3

Let'

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Answer: Option 4 Let'

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Answer: Option 2 Let'

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Answer: Option 1 Let'

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Answer: Option 3 Let'

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