Chemical Engineering — Test 53
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Question 1
When the gas to be dissolved in liquid is a/an ___________________ then normally co-current adsorber are used?
Question 2
_______________ equation applies to diffusivities in liquids?
Question 3
The relative volatility of a binary mixture at constant temperature _________________ the total pressure?
Question 4
The mass transfer co-efficient for a solid sphere of radius ‘a’ dissolving in a large volume of quiescent liquid, in which „D’ is the diffusivity of solute, is _____________________?
Question 5
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) ?
Question 6
The commonly used solvent in supercritical extraction is_____________________?
Question 7
For the same system, if the same liquid used in an absorber is decreased, the tower height will__________________?
Question 8
The equation, NA = (DAB . Pt /RTZ . PBM) (PA1 – PA2) is for_______________________?
Question 9
Perforated plate towers are unique for solvent extraction because, they provide_____________________?
Question 10
For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG: mass transfer co-efficient, moles/m2, a: interfacial area per unit volume of tower) ?