Chemical Engineering MCQs

Page No. 95

The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is________________?


a0


b


c+ve


d -ve


View Answer +ve

Wood metal is not used for making___________________?


aSoft solder


bCasting for dental work


cStorage tank for storing brine and caustic soda


dFusible safety plug for pressure cooker



Nickel (76%) and chromium (15%) alloys are termed as______________________?


aInconel


bMonel


cAluminium bronzes


dBrass


View Answer Inconel

During Joule-Thomson expansion of gases_________________?


aEnthalpy remains constant


b Entropy remains constant


c Temperature remains constant


dNone of these



As pressure approaches zero, the ratio of fugacity to pressure (f/P) for a gas approaches____________________?


aZero


bUnity


cInfinity


d An indeterminate value


View Answer Unity

Babbitt metal is not a___________________________?


aTin base alloy


bWhite metal


cLead base alloy


dPure metal


View Answer Pure metal

If the internal energy of an ideal gas decreases by the same amount as the work done by the system, then the____________________?


aProcess must be isobaric


b Temperature must decrease


c Process must be adiabatic


dBoth B. and C.


View Answer Both B. and C.

The first law of thermodynamics is a statement of conservation of_____________________?


aHeat


b Momentum


cEnergy


dWork


View Answer Energy

Photographic plates are coated with_________________?


aSilver nitrate


bSilver halide


cCalcium silicate


dMetallic silver


View Answer Silver halide

First law of thermodynamics deals with the ___________________?


aDirection of energy transfer


bReversible processes only


cIrreversible processes only


d None of these



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