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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 triple point (for one component system), vapour pressure of solid as compared to that of liquid will be________________?
A More
B Less
C Same
D More or less; depending on the system
Correct Answer: Same
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
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
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
In a turbine, the fluid expands almost_________________?
A Isothermally
B Isobarically
C Adiabatically
D None of these
Correct Answer: Adiabatically
1 kg of calcium carbide (CaC2) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour ?
A 5
B 10
C 15
D 20
Correct Answer: 10
Addition of a non-volatile solute to a solvent produces a ______________ in its solvent?
A Freezing point elevation
B Boiling point depression
C Vapor pressure lowering
D All A., B. & C.
Correct Answer: Vapor pressure lowering
With increase in the temperature of pure (distilled) water, its____________________?
A pOH decreases and pH increases
B pOH and pH both decreases
C pH and pOH both increases
D pH decreases and pOH increases
Correct Answer: pOH and pH both decreases
6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H2 produced will be ______________ gm?
A 0.5
B 1
C 3
D 5
Correct Answer: 0.5
Boiling point of a solution as compared to that of the corresponding solvent is _________________?
A Less
B More
C Same
D Either more or less; depends upon the solvent
Correct Answer: More
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