🏭Chemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs81
In the decomposition of PCl5 represented by, PCl5 ⇌ PCl3 + Cl2, decrease in the pressure of the system will _____________ the degree of dissociation of PCl5?
AIncrease
BDecrease
CNot alter
DNone of these
82
PVγ = Constant (where, γ = Cp/Cv) is valid for a/an ______________ process?
AIsothermal
BIsentropic
CIsobaric
DAdiabatic
83
The expression for entropy change given by, ΔS = – nR ln (P2/P1), holds good for___________________?
AExpansion of a real gas
BReversible isothermal volume change
CHeating of an ideal gas
DCooling of a real gas
84
dW and dq are not the exact differential, because q and W are__________________?
AState functions
BPath functions
CIntensive properties
DExtensive properties
85
Which of the following is not a unit of the equilibrium constant Kp? (where, Δx = number of moles of products number of moles of reactants) ?
A(atm)Δx, when Δx is negative
B(atm)Δx, when Δx is positive
CDimensionless, when Δx = 0
D(atm)Δx2, when Δx > 0
86
Fugacity of a component in an ideal gas mixture is equal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at constant pressure and temperature ____________ as its mole fraction increases?
ADecreases
BDecreases exponentially
CIncreases
DRemain constant
87
(∂E/∂T)V is the mathematical expression for____________________?
ACV
BEnthalpy change
CFree energy change
DNone of these
88
Which of the following is a widely used refrigerant in vapour compression refrigeration system (using large centrifugal compressor) ?
AFreon
BLiquid sulphur dioxide
CMethyl chloride
DAmmonia
89
For an ideal liquid solution, which of the following is unity ?
AActivity
BFugacity
CActivity co-efficient
DFugacity co-efficient
90
Internal energy is equal to the heat absorbed in case of a/an ______________ process?
AConstant volume
BPolytropic
CAdiabatic
DConstant pressure