Chemical Engineering - Mass Transfer - Discussion


With increase in pressure, the relative volatility for a binary system

[A]. increases.
[B]. decreases.
[C]. remains same.
[D]. either (a) or (b), depends on the system.

Answer: Option B


No answer description available for this question.

Vinod Kumar said: (May 22, 2016)  
As pressure increases the liquid composition is higher than vapor composition?

Ashish Kundaliya said: (Aug 4, 2018)  
In another way, as pressure increases the separation becomes difficult. And relative volatility is also a separation.

Satya said: (Oct 18, 2019)  
Relative volatility means tendency to vaporise. In a simple way vaporisation is more easy under vaccum (low pressure) than any amount of positive means increase in pressure results decrease in volatility.

Aksh said: (Mar 4, 2020)  
It can be like that: in high pressure molecules faces difficulty to separate cause the find less space in air.

Alpesh Solanki said: (Jun 1, 2020)  
Relative volatility=Pā/ (Pt-Pā).

So, inversely proportional to the total pressure B.

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