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Mass Transfer

Mass Transfer
Penetration model (theory) for mass transfer was enunciated by

Kissinevskii
Higbie
Danckwerts
Toor and Marchello

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Mass Transfer
Moisture in a solid exerting an equilibrium vapour pressure equal to that of the pure liquid at the same temperature is called the __________ moisture.

Unbound
Bound
Critical
Free

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Mass Transfer
The film penetration model of mass transfer was enunciated by

Fick
Stefan
Toor and Marchello
Gilliland

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Mass Transfer
Small dia distillation column can be a

Sieve tray
Bubble cap
Packed column
Any of these

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Mass Transfer
In distillation column design, the McCabe-Thiele procedure is inadequate and a Ponchan-Savarit procedure is needed, when

An azeotrope forms
A total condenser is used
Saturated feed is not used
The latent heat of vaporisation of the more and less volatile components are greatly different

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Mass Transfer
Which of the following decreases during evaporative cooling process with recirculated water supply?

Partial pressure of vapour
Relative humidity
Wet bulb temperature
None of these

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