🏭Chemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs31
Measurement of thermodynamic property of temperature is facilitated by ____________ law of thermodynamics?
A1st
BZeroth
C3rd
DNone of these
32
The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible _____________ process?
AIsobaric
BIsothermal
CAdiabatic
DNone of these
33
Compressibility factor for almost all the gases are approximately same at the same__________________?
APressure and temperature
BReduced pressure and reduced temperature
CCritical pressure and critical temperature
DNone of these
34
High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process ?
AΔ H = 0 and ΔS = 0
BΔ H ≠ 0 and ΔS = 0
CΔ H ≠ 0 and ΔS ≠ 0
DΔ H = 0 and ΔS ≠ 0
35
Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called a _____________ vapour?
ASuperheated
BDesuperheated
CNon-condensable
DNone of these
36
1st law of thermodynamics is nothing but the law of conservation of___________________?
AMomentum
BMass
CEnergy
DNone of these
37
The third law of thermodynamics states that the__________________?
AHeat capacity of a crystalline solid is zero at absolute zero temperature
BHeat transfer from low temperature to high temperature source is not possible without external work
CGases having same reduced properties behaves similarly
DNone of these
38
Which of the following identities can be most easily used to verify steam table data for superheated steam ?
A(∂T/∂V)S = (∂p/∂S)V
B(∂T/∂P)S = (∂V/∂S)P
C(∂P/∂T)V = (∂S/∂V)T
D(∂V/∂T)P = -(∂S/∂P)T
39
As the temperature is lowered towards the absolute zero, the value of the quantity (∂ΔF/∂T) approaches________________?
AZero
BUnity
CInfinity
DNone of these
40
Pick out the wrong statement pertaining to the decomposition of PCl5 represented by, PCl5 ⇌ PCl3 + Cl2.Degree of dissociation of PCl5 will_________________?
ADecrease on addition of Cl2
BIncrease on addition of an inert gas at constant pressure
CDecrease on increasing the pressure of the system
DNone of these