MCQsDrive | MCQsDrive

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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.

The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a ‘tanks in series model’ comprising of ‘m’ tanks is equal to ___________________?

A m

B 1/m

C √m

D m2

Review Detailed Answer

Correct Answer: m

If the time required to change the concentration of reactant to half its original value is independent of the initial concentration, the order of reaction is _______________?

A Zero

B One

C Two

D Three

Review Detailed Answer

Correct Answer: One

Rate constant ‘k’ and absolute temperature ‘T’ are related by collision theory (for bimolecular) as______________________?

A k ∝ T1.5

B k ∝ exp(-E/RT)

C k ∝ √T

D k ∝ T

Review Detailed Answer

Correct Answer: k ∝ √T

A back mix reactor is___________________?

A Suitable for gas phase reactions

B Ideal at very low conversion

C Same as plug flow reactor (PFR)

D Same as ideal stirred tank reactor

Review Detailed Answer

Correct Answer: Same as ideal stirred tank reactor

The increase in the rate of reaction with temperature is due to__________________?

A Increase in the number of effective collisions

B Decrease in activation energy

C Increase in the average kinetic energy of the reacting molecules

D None of these

Review Detailed Answer

Correct Answer: Decrease in activation energy

In a consecutive reaction system of the given figure bellow, when E1 is much greater than E2, the yield of B increases with the____________________?

A Increase of temperature

B Decrease of temperature

C Increase in initial concentration of A

D Decrease in initial concentration of A

Review Detailed Answer

Correct Answer: Increase of temperature

Helium-mercury method can be used to determine the _____________ of the catalyst particle?

A Pore volume

B Solid density

C Porosity

D All A., B., & C.

Review Detailed Answer

Correct Answer: All A., B., & C.

Which of the following is the most suitable for very high pressure gas phase reaction ?

A Batch reactor

B Tubular flow reactor

C Stirred tank reactor

D Fluidised bed reactor

Review Detailed Answer

Correct Answer: Tubular flow reactor

Half life period of a chemical reaction is_________________?

A The time required to reduce the concentration of the reacting substance to half its initial value

B Half of the space time of a reaction

C Half of the residence time of a reaction

D None of these

Review Detailed Answer

Correct Answer: The time required to reduce the concentration of the reacting substance to half its initial value

Rate of a gaseous phase reaction is given by the reaction shown in the bellow figure. The unit of rate constant is__________________?

A (atm)-1

B (hr)-1

C (atm)-1.(hr)-1

D atm.(hr)-1

Review Detailed Answer

Correct Answer: (atm)-1

Showing 221 to 230 of 472 results

Contact Info

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a ‘tanks in series model’ comprising of ‘m’ tanks is equal to ___________________?

If the time required to change the concentration of reactant to half its original value is independent of the initial concentration, the order of reaction is _______________?

Rate constant ‘k’ and absolute temperature ‘T’ are related by collision theory (for bimolecular) as______________________?

A back mix reactor is___________________?

The increase in the rate of reaction with temperature is due to__________________?

In a consecutive reaction system of the given figure bellow, when E1 is much greater than E2, the yield of B increases with the____________________?

Helium-mercury method can be used to determine the _____________ of the catalyst particle?

Which of the following is the most suitable for very high pressure gas phase reaction ?

Half life period of a chemical reaction is_________________?

Rate of a gaseous phase reaction is given by the reaction shown in the bellow figure. The unit of rate constant is__________________?