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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

Heating of water under atmospheric pressure is an ______________ process?
A Isochoric
B Isobaric
C Adiabatic
D Isothermal
Correct Answer: Isobaric
Pick out the wrong statement ?
A At constant pressure, solubility of a gas in a liquid diminishes with rise in temperature
B Normally, the gases which are easily liquefied are more soluble in common solvents
C The gases which are capable of forming ions in aqueous solution are much more soluble in
D At constant pressure, solubility of a gas in a liquid increases with rise in temperature
Correct Answer: At constant pressure, solubility of a gas in a liquid diminishes with rise in temperature
In a homogeneous solution, the activity co-efficient of a component depends upon the_________________?
A Pressure
B Composition
C Temperature
D All (A), B. and (C)
Correct Answer: All (A), B. and (C)
The main feature of Carnot refrigeration cycle is that, it________________________?
A Does not need the addition of external work for its functioning
B Transfers heat from high temperature to low temperature
C Accomplishes the reverse effect of the heat engine
D None of these
Correct Answer: Accomplishes the reverse effect of the heat engine
Equilibrium constant decreases as the temperature___________________?
A Increases, for an exothermic reaction
B Decreases, for an exothermic reaction
C Increases, for an endothermic reaction
D None of these
Correct Answer: Increases, for an exothermic reaction
The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the _____________ equation?
A Gibbs-Duhem
B Van Laar
C Gibbs-Helmholtz
D Margules
Correct Answer: Gibbs-Duhem
The necessary and sufficient condition for equilibrium between two phases is_________________?
A The concentration of each component should be same in the two phases
B The temperature of each phase should be same
C The pressure should be same in the two phases
D The chemical potential of each component should be same in the two phases
Correct Answer: The chemical potential of each component should be same in the two phases
For an ideal liquid solution, which of the following is unity ?
A Activity
B Fugacity
C Activity co-efficient
D Fugacity co-efficient
Correct Answer: Activity
Internal energy is equal to the heat absorbed in case of a/an ______________ process?
A Constant volume
B Polytropic
C Adiabatic
D Constant pressure
Correct Answer: Constant volume
The expression for entropy change, ΔS = n Cp . ln (T2/T1), is valid for the ______________ of a substance?
A Simultaneous pressure & temperature change
B Heating
C Cooling
D Both B. and C
Correct Answer: Both B. and C
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