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.

The first law of thermodynamics is a restatement of the law of conservation of_________________?

A Mass
B Energy
C Momentum
D None of these
Correct Answer: Energy

Linde gas liquefaction process employs cooling ____________________?

A By throttling
B By expansion in an engine
C At constant pressure
D None of these
Correct Answer: By throttling

________________ decreases during adiabatic throttling of a perfect gas?

A Entropy
B Temperature
C Enthalpy
D Pressure
Correct Answer: Pressure

In the equation PVn = constant, if the value of n = y = Cp/Cv, then it represents a reversible ______________ process?

A Isothermal
B Adiabatic
C Isentropic
D Polytropic
Correct Answer: Isentropic

Change of state namely evaporation condensation, freezing and melting is an _______________ process?

A Isothermal
B Adiabatic
C Isobaric
D Isochoric
Correct Answer: Isothermal

The kinetic energy of gas molecule is zero at_____________________?

A 0°C
B 273°C
C 100°C
D -273°C
Correct Answer: 273°C

Co-efficient of Performance (COP) of a refrigerator is the ratio of the ______________________?

A Work required to refrigeration obtained
B Refrigeration obtained to the work required
C Lower to higher temperature
D Higher to lower temperature
Correct Answer: Refrigeration obtained to the work required

A system is said to be at equilibrium, if the entropy of the system has reached ____________ value?

A Minimum
B Zero
C Maximum
D None of these
Correct Answer: Maximum

Claude gas liquefaction process employs cooling___________________?

A At constant pressure
B By throttling
C By expansion in an engine
D None of these
Correct Answer: By expansion in an engine

Fugacity is a measure of the____________________?

A Escaping tendencies of the same substance in different phases of a system
B Relative volatility of a mixture of two miscible liquids
C Behaviour of ideal gases
D None of these
Correct Answer: Escaping tendencies of the same substance in different phases of a system