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Mass Transfer

Mass Transfer
__________ developed the film theory.

Higbie
Ergun
Fick
Levenspeil

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Mass Transfer
For a binary mixture distillation process, the degree of freedom is 2. However, if the pressure is fixed in this process, the number of independent variables in this process will be

2
1
3

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Mass Transfer
Which of the following adsorbant is used in the refinning of sugar?

Wood charcoal
Silica gel
Activated clay
Bone charcoal

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Mass Transfer
The wet and 'dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be __________ °C.

-25
25
> 25
< 25

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Mass Transfer
In case of absorption & stripping, the interface of the liquid & gas phases are present in equilibrium, when the diffusional resistance of __________ is zero.

Interface
All of these
Gas phase
Liquid phase

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Mass Transfer
Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a

Higher dew point
Higher relative humidity
Higher absolute (specific) humidity
Higher wet bulb temperature

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