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Mass Transfer

Mass Transfer
The-relative volatility for separation of a non-ideal binary mixture by distillation should be

< 1
1
> 1

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Mass Transfer
Rotary dryers cannot handle __________ materials.

Sticky
Grannular
Free flowing
Dry

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Mass Transfer
Ammonia present in the coke oven gas is removed by washing with

Caustic solution
Dilute HCl
Dilute ammoniacal liquor
Ethanolamine

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Mass Transfer
The binary diffusivity in gases and liquids vary respectively as

T3/2 and T
T and T3/2
T3/2 and √T
√T and T3/2

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Mass Transfer
At 750°K and 1 atm, the approximate value of Schmidt number for air is

1
10
0.1
0.01

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

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