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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.

All Topics  9594

What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, TR (where, T1 and T2 are source & surrounding temperatures respectively.) ?
A TR/(T2 – TR) × (T1 – T2)/T1
B TR/(T2 – TR) × T1/(T1 – T2)
C TR/(T1 – TR) × (T1 – T2)/T1
D None of these
Correct Answer: TR/(T2 – TR) × (T1 – T2)/T1
An ideal liquid refrigerant should______________________?
A Not have a sub-atmospheric vapour pressure at the temperature in the refrigerator coils
B Not have unduly high vapour pressure at the condenser temperature
C Both A. and B
D Have low specific heat
Correct Answer: Both A. and B
Number of degrees of freedom for a three phase system in equilibrium comprising of three non-reacting chemical species is__________________?
A 2
B 0
C 1
D 3
Correct Answer: 2
Pick out the Clausius-Clapeyron equation from the following?
A dP/dT = ΔH/TΔV
B ln P = – (ΔH/RT) + constant
C ΔF = ΔH + T [∂(ΔF)/∂T]P
D None of these
Correct Answer: ln P = – (ΔH/RT) + constant
Gibbs-Duhem equation_____________________?
A States that n1dμ1 + n2dμ2 + ….njdμj = 0, for a system of definite composition at constant
B Applies only to binary systems
C Finds no application in gas-liquid equilibria involved in distillation
D None of these
Correct Answer: States that n1dμ1 + n2dμ2 + ….njdμj = 0, for a system of definite composition at constant
The variation of heat of reaction with temperature at constant pressure is given by the ____________ law?
A Kelvin’s
B Antoine’s
C Kirchoff’s
D None of these
Correct Answer: Kirchoff’s
Entropy change of mixing two liquid substances depends upon the_________________?
A Molar concentration
B Quantity (i.e. number of moles)
C Both A. and B
D Neither A. nor B
Correct Answer: Both A. and B
Generation of heat by friction is an example of a/an ________________ change?
A Isothermal
B Irreversible
C Adiabatic
D Reversible
Correct Answer: Irreversible
Free energy change at equilibrium is____________________?
A Zero
B Positive
C Negative
D Indeterminate
Correct Answer: Zero
The unit of fugacity is the same as that of the_________________?
A Pressure
B Temperature
C Volume
D Molar concentration
Correct Answer: Pressure
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