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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

Pick out the wrong statement ?
A Minimum number of degree of freedom of a system is zero
B Degree of freedom of a system containing a gaseous mixture of helium, carbon dioxide and
C For a two phase system in equilibrium made up of four non-reacting chemical species, the
D Enthalpy and internal energy change is zero during phase change processes like melting,
Correct Answer: Enthalpy and internal energy change is zero during phase change processes like melting,
Heat pump_______________________?
A Accomplishes only space heating in winter
B Accomplishes only space cooling in summer
C Accomplishes both A. and B
D Works on Carnot cycle
Correct Answer: Accomplishes both A. and B
The equation Tds = dE – PdV applies to___________________?
A Single phase fluid of varying composition
B Single phase fluid of constant composition
C Open as well as closed systems
D Both B. and C
Correct Answer: Both B. and C
Throttling (Joule-Thomson effect) process is a constant _____________ process?
A Enthalpy
B Entropy
C Pressure
D None of these
Correct Answer: Enthalpy
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
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
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
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
Free energy change at equilibrium is____________________?
A Zero
B Positive
C Negative
D Indeterminate
Correct Answer: Zero
Extensive properties of a thermodynamic system depend upon the _____________ of the system?
A Specific volume
B Temperature
C Mass
D Pressure
Correct Answer: Mass
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