M C Q s D r i v e

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.

At absolute zero temperature, the _____________ of the gas is zero?
A Pressure
B Volume
C Mass
D None of these
Correct Answer: Volume
Refrigerants commonly used for domestic refrigerators are_________________?
A Ethyl chloride or methyl chloride
B Freon-12
C Propane
D NH3 or CO2
Correct Answer: Ethyl chloride or methyl chloride
Joule-Thomson Co-efficient at any point on the inversion curve is___________________?
A
B +ve
C 0
D -ve
Correct Answer: 0
While dissolving a gas into a liquid at a constant temperature, the ratio of the concentration of the gas in the solution phase and in the gaseous phase is _______________?
A Infinity
B Unity
C Constant
D Negative
Correct Answer: Constant
No work is done by the system, when a reaction occurs at constant__________________?
A Volume
B Temperature
C Pressure
D None of these
Correct Answer: Volume
Which one is true for a throttling process ?
A A gas may have more than one inversion temperatures
B The inversion temperature is different for different gases
C The inversion temperature is same for all gases
D The inversion temperature is the temperature at which Joule-Thomson co-efficient is infinity
Correct Answer: The inversion temperature is different for different gases
If atmospheric temperature and dew point are nearly equal, then the relative humidity is_______________?
A Zero
B 50%
C Almost 100%
D unpredictable
Correct Answer: Almost 100%
In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures are -13°C and 37°C respectively, the Carnot COP will be________________?
A 5.2
B 6.2
C 0.168
D Data insufficient, can’t be found out
Correct Answer: 5.2
What is the value of Joule-Thomson co-efficient for an ideal gas ?
A +ve
B -ve
C 0
D
Correct Answer: 0
Chemical engineering thermodynamics is concerned with the ____________ in/of chemical processes?
A Reaction mechanism
B Calculation of rates
C Energy transformation from one form to another
D None of these
Correct Answer: Energy transformation from one form to another