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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

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
A solid is transformed into vapour without going to the liquid phase at_________________?
A Triple point
B Boiling point
C Below triple point
D Always
Correct Answer: Triple point
A Carnot cycle consists of the following steps ?
A Two isothermal and two isentropic
B Two isobaric and two isothermal
C Two isochoric and two isobaric
D Two isothermals and two isochoric
Correct Answer: Two isothermal and two isentropic
“The rate at which a substance reacts is proportional to its active mass and the rate of a chemical reaction is proportional to the product of active masses of the reacting substances”. This is the_________________?
A Lewis-Randall rule
B Statement of Van’t Hoff Equation
C Le-Chatelier’s principle
D None of these
Correct Answer: None of these
Claude’s liquefaction process employs the cooling of gases by__________________?
A Expansion in an engine
B Following a constant pressure cycle
C Throttling
D None of these
Correct Answer: Expansion in an engine
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