M C Q s D r i v e

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

thumb

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.

During adiabatic expansion of gas___________________?
A Pressure remains constant
B Pressure is increased
C Temperature remains constant
D None of these
Correct Answer: None of these
Fugacity is most helpful in____________________?
A Representing actual behaviour of real gases
B Representing actual behaviour of ideal gases
C The study of chemical equilibria involving gases at atmospheric pressure
D None of these
Correct Answer: Representing actual behaviour of real gases
Enthalpy changes over a constant pressure path are always zero for ______________ gas?
A Any
B A perfect
C An easily liquefiable
D A real
Correct Answer: A perfect
The most important application of distribution law is in_____________________?
A Evaporation
B Liquid extraction
C Drying
D Distillation
Correct Answer: Liquid extraction
The standard Gibbs free energy change of a reaction depends on the equilibrium______________________?
A Pressure
B Temperature
C Composition
D All A, B. and C
Correct Answer: Temperature
The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x1. x2, where A is a constant. The corresponding equation for ln y1, where y1 is the activity co-efficient of component 1, is__________________?
A A . x22
B Ax1
C Ax2
D Ax12
Correct Answer: A . x22
For an isothermal process, the internal energy of a gas____________________?
A Increases
B Decreases
C Remains unchanged
D Data insufficient, can’t be predicted
Correct Answer: Remains unchanged
Ideal gas law is applicable at____________________?
A Low T, low P
B High T, high P
C Low T, high P
D High T, low P
Correct Answer: High T, low P
Work done in case of free expansion is____________________?
A Indeterminate
B Zero
C Negative
D None of these
Correct Answer: Zero
When a gas is subjected to adiabatic expansion, it gets cooled due to__________________?
A Decrease in velocity
B Decrease in temperature
C Decrease in kinetic energy
D Energy spent in doing work
Correct Answer: Energy spent in doing work