Chemical Engineering MCQs

Page No. 656

Pick out the system with minimum boiling azeotrope at 1 atm ?


aBenzene-toluene


bEthyl alcohol-water


cHydrochloric acid-water


dAll A., B. and C.


View Answer Ethyl alcohol-water

The film penetration model of mass transfer was enunciated by______________________?


aGilliland


bToor and Marcello


cStefan


dFick


View Answer Toor and Marcello

(NRe . NSc) is termed in mass transfer operation as the ______________ number?


aStanton


bSherwood


cPeclet


dNone of these


View Answer Peclet

In McCabe-Thiele method, at infinite reflux ratio________________?


aThe overhead product is minimum


bBoth the operating lines coincide with diagonal


cBoth A. and B.


dNeither A. nor B.



With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux__________________?


aIncreases


bIncreases


cRemain same


dMay increase or decrease; depends on system


View Answer Increases

The operation involved when the soluble material is largely on the surface of an insoluble solid and is merely washed off by the solvent is called__________________?


aDecoction


bPercolation


cElutriation or elution


dNone of these



The recovery of penicillin from the acidified fermentation broth is done by__________________?


aDistillation


bEvaporation


cAbsorption


dLiquid extraction


View Answer Liquid extraction

Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be_________________?


a1


b> 1


c< 1


d≤ 1


View Answer > 1

Molarity is defined as the number of gm moles of solute per ________________ of solvent?


aLitre


bkg


cgm


dc.c


View Answer Litre

Adsorption is a unit operation which generally involves _______________ systems?


aLiquid-solid


bGas-solid


cFluid-solid


dSolid-solid


View Answer Fluid-solid

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