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.

Third law of thermodynamics is concerned with the__________________?
A Value of absolute entropy
B Energy transfer
C Direction of energy transfer
D None of these
Correct Answer: Value of absolute entropy
Fugacity and pressure are numerically equal, when the gas is____________________?
A In standard state
B At high pressure
C At low temperature
D In ideal state
Correct Answer: In ideal state
Activity co-efficient is a measure of the____________________?
A Departure from ideal solution behaviour
B Departure of gas phase from ideal gas law
C Vapour pressure of liquid
D None of these
Correct Answer: Departure from ideal solution behaviour
If two pure liquid constituents are mixed in any proportion to give an ideal solution, there is no change in____________________?
A Volume
B Enthalpy
C Both A. & B
D Neither A. nor B
Correct Answer: Both A. & B
Cp – Cv = R is valid for ______________ gases?
A Ideal
B Very high pressure
C Very low temperature
D All of the above
Correct Answer: Ideal
Which of the following is Clausius-Clapeyron Equation for vaporisation of an ideal gas under the condition that the molar volume of liquid is negligible compared to that of the vapor ?
A d ln p/dt = Hvap/RT2
B d ln p/dt = RT2/Hvap
C dp/dt = RT2/Hvap
D dp/dt = Hvap/RT2
Correct Answer: d ln p/dt = Hvap/RT2
Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is_____________________?
A Positive
B Negative
C Zero
D Infinity
Correct Answer: Zero
Which of the following non-flow reversible compression processes require maximum work ?
A Adiabatic process
B Isothermal process
C Isobaric process
D All require same work
Correct Answer: Adiabatic process
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
Correct Answer: Mole fraction
What is the degree of freedom for a system comprising liquid water equilibrium with its vapour ?
A 0
B 1
C 2
D 3
Correct Answer: 1