M C Q s D r i v e

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

Minimum number of phases that exists in a system is 1. Number of chemical species in a colloidal system is__________________?
A 1
B 2
C 3
D 4
Correct Answer: 2
For a real gas, the chemical potential is given by_____________________?
A RT d ln P
B RT d ln f
C R d ln f
D None of these
Correct Answer: RT d ln f
The free energy change for a chemical reaction is given by (where, K = equilibrium constant)________________?
A RT ln K
B -RT ln K
C -R ln K
D T ln K
Correct Answer: RT ln K
For the reversible exothermic reaction, N2 + 3H2 ⇌ 2NH3, increase of pressure would________________?
A Shift the equilibrium towards right
B Give higher yield of NH3
C Both B. and C
D Neither A. nor B
Correct Answer: Both B. and C
Heat is added at constant pressure in an ideal _____________ cycle?
A Stirling
B Brayton
C Rankine
D Both B. and C
Correct Answer: Both B. and C
PVγ = Constant (where, γ = Cp/Cv) is valid for a/an ______________ process?
A Isothermal
B Isentropic
C Isobaric
D Adiabatic
Correct Answer: Adiabatic
The expression for entropy change given by, ΔS = – nR ln (P2/P1), holds good for___________________?
A Expansion of a real gas
B Reversible isothermal volume change
C Heating of an ideal gas
D Cooling of a real gas
Correct Answer: Reversible isothermal volume change
dW and dq are not the exact differential, because q and W are__________________?
A State functions
B Path functions
C Intensive properties
D Extensive properties
Correct Answer: Path functions
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
C Dimensionless, when Δx = 0
D (atm)Δx2, when Δx > 0
Correct Answer: (atm)Δx2, when Δx > 0
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?
A Decreases
B Decreases exponentially
C Increases
D Remain constant
Correct Answer: Increases