๐ญChemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs1
In a working refrigerator, the value of COP is always__________________?
A0
BD. > 1
2
The internal energy of an incompressible fluid depends upon its_________________?
Anor B
BTemperature
CBoth
DNeither
3
Cv for an ideal gas__________________?
ADoes not depend upon temperature
BIs independent of pressure only
CIs independent of volume only
DIs independent of both pressure and volume
4
Throttling process is a/an _____________ process?
AReversible and isothermal
BIrreversible and constant enthalpy
CReversible and constant entropy
DReversible and constant enthalpy
5
(โT/โP)H is the mathematical expression for__________________?
ASpecific heat at constant pressure (Cp)
BSpecific heat at constant volume (Cv)
CJoule-Thompson co-efficient
DNone of these
6
In jet refrigerators, the refrigerating fluid is practically always_________________?
AWater
BAmmonia
CFreon
DBrine
7
Gibbs phase rule finds application, when heat transfer occurs by___________________?
AConduction
BConvection
CRadiation
DCondensation
8
Which of the following will increase the volume of a real gas by four times ?
ADoubling the absolute temperature as well as pressure of the gas
BReducing pressure to one fourth at constant temperature
CReducing temperature to one fourth at constant pressure
DReducing the temperature to half and doubling the pressure
9
An ideal liquid refrigerant should______________________?
Aand B
BNot have unduly high vapour pressure at the condenser temperature
CBoth
DHave low specific heat
10
Pick out the Clausius-Clapeyron equation from the following?
AdP/dT = ฮH/TฮV
Bln P = โ (ฮH/RT) + constant
CฮF = ฮH + T [โ(ฮF)/โT]P
DNone of these