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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

At a given temperature, the volume of a gas dissolved in a solvent _______________ with increase in pressure?
A Increases
B Decreases
C Remains unchanged
D May increase or decrease; depends on the gas
Correct Answer: Remains unchanged
In the reaction; N2 + O2 ⇌ 2NO, increasing the pressure will result in_________________?
A Shifting the equilibrium towards right
B Shifting the equilibrium towards left
C No change in equilibrium condition
D None of these
Correct Answer: No change in equilibrium condition
1m3 of an ideal gas at 500 K and 1000 kPa expands reversibly to 5 times its initial volume in an insulated container. If the specific heat capacity (at constant pressure) of the gas is 21 J/mole . K, the final temperature will be ?
A 35 K
B 174 K
C 274 K
D 154 K
Correct Answer: 274 K
Work done may be calculated by the expression ∫ p dA for _____________ processes ?
A Non-flow reversible
B Adiabatic
C Both A. and B
D Neither A. nor B
Correct Answer: Both A. and B
Sound waves propagation in air exemplifies an ______________ process?
A Adiabatic
B Isothermal
C Isometric
D None of these
Correct Answer: Adiabatic
Which of the following is an undesirable characteristic of a refrigerant ?
A It should be non-explosive
B It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils
C Its vapor pressure at the condenser temperature should be very high
D None of these
Correct Answer: It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils
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
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