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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

Mollier diagram is a plot of___________________?
A Temperature vs. enthalpy
B Temperature vs. enthalpy
C Entropy vs. enthalpy
D Temperature vs. internal energy
Correct Answer: Entropy vs. enthalpy
Which of the following is not an intensive property ?
A Molar heat capacity
B Internal energy
C Viscosity
D None of these
Correct Answer: Internal energy
The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the ____________ temperature?
A Critical
B Boyle
C Inversion
D Reduced
Correct Answer: Boyle
The equation DU = Tds – PdV is applicable to infinitesimal changes occuring in_________________?
A An open system of constant composition
B A closed system of constant composition
C An open system with changes in composition
D A closed system with changes in composition
Correct Answer: A closed system with changes in composition
Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are_______________?
A Always greater than one
B Same at the same reduced temperature
C Same at the same reduced pressure
D Both B. & C
Correct Answer: Both B. & C
Heat of reaction at constant volume is identified with _____________ change?
A Enthalpy
B Internal energy
C Either A. or B
D Neither A. nor B
Correct Answer: Internal energy
In a turbine, the fluid expands almost_________________?
A Isothermally
B Isobarically
C Adiabatically
D None of these
Correct Answer: Adiabatically
The equation, PV = nRT, is best obeyed by gases at____________________?
A Low pressure & high temperature
B High pressure & low temperature
C Low pressure & low temperature
D None of these
Correct Answer: Low pressure & high temperature
The number of degrees of freedom at the triple point of water is__________________?
A 0
B 1
C 2
D 3
Correct Answer: 0
Gibbs-Helmholtz equation is__________________?
A ΔF = ΔH + T [∂(ΔF)/∂T]P
B ΔF = ΔH – TΔT
C d(E – TS) T, V < 0
D dP/dT = ΔHvap/T.ΔVvap
Correct Answer: ΔF = ΔH + T [∂(ΔF)/∂T]P
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