Fenske equation for determining the minimum number of theoretical stages in distillation column holds good, when the_________________?
Correct answer: A. Relative volatility is reasonably constant
- A. Relative volatility is reasonably constant
- B. Mixture (to be separated) shows negative deviation from ideality
- C. Mixture (to be separated) shows positive deviation from ideality
- D. Multi-component distillation is involved
Explanation
The Fenske relation estimates the minimum stages at total reflux using relative volatilities, commonly treating them as reasonably constant. Multicomponent systems can also use Fenske, so being multicomponent is not the defining condition here.
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