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Mass Transfer

Mass Transfer
NSc/NPr is called the

Lewis number
Psychrometric ratio
Stantan number
Sherwood number

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Mass Transfer
When a multistage tray tower uses a minimum reflux ratio, it implies

Minimum trays and minimum reboiler heat load
Infinite trays and maximum reboiler heat load
Infinite trays and minimum reboiler heat load
Minimum trays and maximum reboiler heat load

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Mass Transfer
At what percentage (by volume) of alcohol composition, it forms an azeotrope with water?

91.5
99
95
90

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Mass Transfer
The commonly used solvent in supercritical extraction is

Water
Carbon dioxide
Methyl ethyl ketone
Carbon tetrachloride

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Mass Transfer
Cox chart, which is useful in the design of distillation column particularly for petroleum hydrocarbons, is a plot of (where, P = vapor pressure, T = temperature)

T vs . P
Log P vs . T
P vs . log T
Log P vs. log T

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Mass Transfer
Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their

Density
Viscosity
Relative volatility
Solubility

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MORE MCQ ON Mass Transfer

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