🏭Chemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs71
Charles’ law for gases states that__________________?
AV/T = Constant
BV ∝ 1/T
CV ∝ 1/P
DPV/T = Constant
72
______________ Equation predicts the activity co-efficient from experimental data ?
ALewis-Randall
B&
CVan Laar
DBoth
73
The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and n- octane into pure compounds each at 1 atm is__________________?
A-2 RT ln 0.5
B-RT ln 0.5
C0.5 RT
D2 RT
74
At normal boiling point, molar entropy of vaporisation is _____________ Joule/K°.mole?
A72
B92
C142
D192
75
A/an ____________ system is exemplified by a vessel containing a volatile liquid in contact with its vapor?
AIsolated
BClosed
COpen
DNone of these
76
In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when_______________?
An = y = 1.4
Bn = 0
Cn = 1
Dn = 1.66
77
In which of the following reaction equilibrium, the value of equilibrium constant Kp will be more than is Kc ?
A2HI ⇌ H2 + I2
BN2O4 ⇌ 2NO2
C2SO2 + O2 ⇌ 2SO3
DNone of these
78
For an ideal gas, the activity co-efficient is_________________?
ADirectly proportional to pressure
BInversely proportional to pressure
CUnity at all pressures
DNone of these
79
A cylinder contains 640 gm of liquid oxygen. The volume occupied (in litres) by the oxygen, when it is released and brought to standard conditions (0°C, 760 mm Hg) will be _____________ litres?
A448
B224
C22.4
DData insufficient; can’t be computed
80
Pick out the correct equation relating ‘F’ and ‘A’___________________?
AF = A + PV
BF = E + A
CF = A – TS
DF = A + TS