A. 4
B. 3
C. 5
D. 6
✅ The correct answer is option B.
Chemical Engineering MCQs
For equilibrium process (i.e. reversible) in an isolated system
A. ds = 0
B. ds < 0
C. ds > 0
D. ds = Constant
✅ The correct answer is option A.
The unit of fugacity is the same as that of the
A. Pressure
B. Temperature
C. Volume
D. Molar concentration
✅ The correct answer is option A.
Which of the following is an extensive property of a system?
A. Heat capacity
B. Molal heat capacity
C. Pressure
D. Concentration
✅ The correct answer is option A.
The heat capacities for the ideal gas state depend upon the
A. Pressure
B. Temperature
C. Both A & B
D. Neither A nor B
✅ The correct answer is option B.
Cv for an ideal gas
A. Does not depend upon temperature
B. Is independent of pressure only
C. Is independent of volume only
D. Is independent of both pressure and volume
✅ The correct answer is option D.
High pressure steam is expanded adiabati-cally 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:
A. Δ H = 0 and ΔS = 0
B. Δ H ≠ 0 and ΔS = 0
C. Δ H ≠ 0 and ΔS ≠ 0
D. Δ H = 0 and ΔS ≠ 0
✅ The correct answer is option B.
For an incompressible fluid, the __________ is a function of both pressure as well as temperature.
A. Internal energy
B. Enthalpy
C. Entropy
D. All of the above
✅ The correct answer is option B.
Which of the following units is not present in both the vapor compression refrigeration system and absorption refrigeration system ?
A. Expansion valve
B. Condenser
C. Refrigerator
D. Compressor
✅ The correct answer is option D.
Activity co-efficient is a measure of the
A. Departure from ideal solution behaviour
B. Departure of gas phase from idea] gas law
C. Vapour pressure of liquid
D. None of these
✅ The correct answer is option A.