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.

Entropy is a measure of the _____________ of a system?
A Disorder
B Orderly behaviour
C Temperature changes only
D None of these
Correct Answer: Disorder
A system in which there is exchange of energy but not of mass, is called a/an ____________ system?
A Isolated
B Open
C Insulated
D Closed
Correct Answer: Closed
Those solutions in which there is no volume change upon mixing the components in the liquid state and which, when diluted do not undergo any heat change (i.e. heat of dilution is zero), are called ____________ solutions?
A Ideal
B Real
C Isotonic
D None of these
Correct Answer: Ideal
Boyle’s law for gases states that____________________?
A P ∝ 1/V, when temperature is constant
B P ∝ 1/V, when temperature & mass of the gas remain constant
C P ∝ V, at constant temperature & mass of the gas
D P/V = constant, for any gas
Correct Answer: P ∝ 1/V, when temperature & mass of the gas remain constant
The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be _______________?
A More
B Less
C Same
D Data insufficient to predict
Correct Answer: More
With increase in pressure (above atmospheric pressure), the Cp of a gas_____________________?
A Increases
B Decreases
C Remains unchanged
D First decreases and then increases
Correct Answer: Increases
PVy = constant, holds good for an isentropic process, which is_________________?
A Reversible and isothermal
B Isothermal and irreversible
C Reversible and adiabatic
D Adiabatic and irreversible
Correct Answer: Reversible and adiabatic
As the temperature is lowered towards the absolute zero, the value of ∂(ΔF)/∂T, then approaches_______________________?
A Unity
B Zero
C That of the heat of reaction
D Infinity
Correct Answer: Zero
Which of the following is a thermodynamic property of a system ?
A Concentration
B Mass
C Temperature
D Entropy
Correct Answer: Entropy
In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is_______________?
A More
B Less
C Same
D Unpredictable; depends on the particular reaction
Correct Answer: Same