Mass Transfer
Plate efficiency in a distillation column is reduced due to the __________ of liquid.

Weeping & dumping
Foaming
Entrainment
All of these

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Mass Transfer
Fenske's equation for determining the minimum number of theoretical stages in distillation column holds good, when the

Mixture (to be separated) shows negative deviation from ideality
Relative volatility is reasonably constant
Multicomponent distillation is involved
Mixture (to be separated) shows positive deviation from ideality

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