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.

A gas shows deviation from ideal behaviour at______________?

A Low pressure and high temperature
B Low pressure and low temperature
C Low temperature and high pressure
D High temperature and high pressure
Correct Answer: Low temperature and high pressure

Water on heating from 1 to 4°C___________________?

A Contracts
B Expands
C Has same volume
D May contract or expand
Correct Answer: Contracts

The Maxwell relation derived from the differential expression for the Helmholtz free energy (dA) is________________?

A (∂T/∂V)S = – (∂P/∂S)V
B (∂S/∂P)T = – (∂V/∂T)P
C (∂V/∂S)P = (∂T/∂P)S
D (∂S/∂V)T = (∂P/∂T)V
Correct Answer: (∂S/∂V)T = (∂P/∂T)V

The work done in isothermal compression compared to that in adiabatic compression will be__________________?

A Less
B More
C Same
D More or less depending upon the extent of work done
Correct Answer: More

Specific heat of a gas for a reversible adiabatic process is________________?

A Negative
B Zero
C Infinity
D None of these
Correct Answer: Zero

The gas law (PV = RT) is true for an ______________ change?

A Isothermal
B Adiabatic
C Both A. & B
D Neither A. nor B
Correct Answer: Both A. & B

Heat requirement for decomposition of a compound into its elements is _____________ that is evolved during the formation of that compound from its elements?

A The same
B Less than
C Greater than
D Different than
Correct Answer: The same

Which of the following is true for Virial equation of state ?

A Virial co-efficients are universal constants
B Virial co-efficients ‘B’ represents three body interactions
C Virial co-efficients are function of temperature only
D For some gases, Virial equations and ideal gas equations are the same
Correct Answer: Virial co-efficients are function of temperature only

For an ideal gas, the chemical potential is given by______________?

A RT d ln P
B R d ln P
C R d ln f
D None of these
Correct Answer: RT d ln P

In case of a reversible process (following pvn = constant), work obtained for trebling the volume (v1 = 1 m3 and v23 m3) is maximum, when the value of ‘n’ is_________________?

A 0
B 1
C y = 1.44
D 1.66
Correct Answer: 0