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Mass Transfer

Mass Transfer
What is the reflux ratio at total reflux?

Data insufficient
Infinity
Zero
Unity

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Mass Transfer
Schmidt number is given by

Re/Pe
Μ/ρDAB
Sh x Pe
Re.Pe

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Mass Transfer
During sensible cooling process

Both B and C
Relative humidity decreases
Relative humidity increases
Wet bulb temperature decreases

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Mass Transfer
Molecular seives are regenerated by heating to __________ °C.

> 1000
< 150
200-330
> 500

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Mass Transfer
Minimum possible diameter of a packed coloumn is decided mainly by the

Liquid density
Liquid hold up
Flooding
Gas viscosity

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Mass Transfer
Mass transfer co-efficient is directly proportional to DAB0.5, according to __________ theory.

Film
Surface renewal
Penetration
None of these

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