๐ญChemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs61
In an ideal gas mixture, fugacity of a species is equal to its___________________?
AVapor pressure
BPartial pressure
CChemical potential
DNone of these
62
The extensive properties are____________________?
Aand B
BFree energy, entropy and enthalpy
CBoth
DNone of these
63
Van Laar equation deals with the activity co-efficients in___________________?
ABinary solutions
BTernary solutions
CAzeotropic mixture only
DNone of these
64
Which of the following is not an intensive property ?
AMolar heat capacity
BInternal energy
CViscosity
DNone of these
65
The equation DU = Tds โ PdV is applicable to infinitesimal changes occuring in_________________?
AAn open system of constant composition
BA closed system of constant composition
CAn open system with changes in composition
DA closed system with changes in composition
66
Heat of reaction at constant volume is identified with _____________ change?
Anor B
BInternal energy
CEither
DNeither
67
The ratio of equilibrium constants (Kp2/Kp1) at two different temperatures is given by____________________?
A(R/ฮH) (1/T1 โ 1/T2)
B(ฮH/R) (1/T1 โ 1/T2)
C(ฮH/R) (1/T2 โ 1/T1)
D(1/R) (1/T1 โ 1/T2)
68
All gases during throttling process at atmospheric temperature and pressure show a cooling effect except__________________?
ACO2
BH2
CO2
DN2
69
Compressibility factor-reduced pressure plot on reduced co-ordinates facilitates__________________?
AUse of only one graph for all gases
BCovering of wide range
CEasier plotting
DMore accurate plotting
70
At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (ฮผ) is given by (where, ฮผ = standard chemical potential at unit fugacity (fยฐ = 1 atm.) and the gas behaves ideally.) ?
Aฮผยฐ + RT ln f
Bฮผยฐ+ R ln f
Cฮผยฐ + T ln f
Dฮผยฐ + R/T ln f