A. Less than
B. More than
C. Same as
D. Not related to
✅ The correct answer is option C.
Chemical Engineering MCQs
The equation, Cp – Cv = R, is true for __________ gas.
A. No
B. Any real
C. Only ideal
D. Both B and C
✅ The correct answer is option C.
In an ideal solution, the activity of a component equals its
A. Mole fraction
B. Fugacity at the same temperature and pressure
C. Partial pressure
D. None of these
✅ The correct answer is option A.
For multicomponent multiple phases to be in equilibrium at the same pressure and temperature, the __________ of each component must be same in all phases.
A. Chemical potential
B. Fugacity
C. Both A and B
D. Neither A nor B
✅ The correct answer is option C.
Fugacity is most helpful in
A. Representing actual behaviour of real gases
B. Representing actual behaviour of ideal gases
C. The study of chemical equilibria involving gases at atmospheric pressure
D. None of these
✅ The correct answer is option A.
Which of the following is not a common refrigerant?
A. Freon-12
B. Ethylene
C. Ammonia
D. Carbon dioxide
✅ The correct answer is option B.
Mollier diagram is a plot of
A. Temperature vs. enthalpy
B. Temperature vs. enthalpy
C. Entropy vs. enthalpy
D. Temperature vs. internal energy
✅ The correct answer is option C.
For water at 300°C, it has a vapour pressure 8592.7 kPa and fugacity 6738.9 kPa Under these conditions, one mole of water in liquid phase has a volume of 25.28 cm³ and that in vapour phase in 391.1 cm³.Fugacity of water (in kPa) at 9000 kPa will be
A. 6738.9
B. 6753.5
C. 7058.3
D. 9000
✅ The correct answer is option B.
Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent.
1-1000
1000-1500
1500-2000
2000-2500
✅ The correct answer is option A.
Poly tetra flouro ethylene (PTFE) is known as
dacron
teflon
bakelite
celluloid
✅ The correct answer is option B.