Chemical Reaction Engineering Questions and Answers

Chemical Reaction Engineering Interview Questions and Answers

Our 1000+ Chemical Reaction Engineering questions and answers focuses on all areas of Chemical Reaction Engineering subject covering 100+ topics in Chemical Reaction Engineering. These topics are chosen from a collection of most authoritative and best reference books on Chemical Reaction Engineering. One should spend 1 hour daily for 2-3 months to learn and assimilate Chemical Reaction Engineering comprehensively. This way of systematic learning will prepare anyone easily towards Chemical Reaction Engineering interviews, online tests, examinations and certifications.


– 1000+ Multiple Choice Questions & Answers in Chemical Reaction Engineering with explanations
– Every MCQ set focuses on a specific topic in Chemical Reaction Engineering Subject

Who should Practice these Chemical Reaction Engineering Questions?
– Anyone wishing to sharpen their knowledge of Chemical Reaction Engineering Subject
– Anyone preparing for aptitude test in Chemical Reaction Engineering
– Anyone preparing for interviews (campus/off-campus interviews, walk-in interview and company interviews)
– Anyone preparing for entrance examinations and other competitive examinations
– All – Experienced, Freshers and Students


Here’s list of Questions & Answers on Chemical Reaction Engineering Subject covering 100+ topics:

1. Questions & Answers on Basic Concepts

The section contains questions and answers on mole balances, reactions rates and classification.

Mole Balances
Reaction Rates – 1
Reaction Rates – 2
Classification of Reactions

2. Questions on Elements of Reaction Kinetics

The section contains questions on rate coefficient modelling and kinetic models size reduction.

Modelling the Rate Coefficient – 1
Modelling the Rate Coefficient – 2
Reducing the Size of Kinetic Models

3. Questions & Answers on Kinetics of Homogeneous Reactions

The section contains questions and answers on liquid and gas phase reactions, theories comparison and ideal reactor types.

Liquid and Gas Phase Reactions
Comparison of Theories – 1
Comparison of Theories – 2
Ideal Reactor Types

4. Questions on Homogenous Reactions in Ideal Reactors

The section contains questions on reactor design basics and homogenous reaction mechanisms.

Introduction to Reactor Design Homogenous Reaction Mechanisms

5. Questions & Answers on Ideal Reactors for a Single Reaction, Conversion and Reactor Sizing

The section contains questions and answers on batch reactor design equations, flow reactors design equations, ideal reactors problems, flow reactors, right reactor series, space time and velocity.

Batch Reactor Design Equations
Design Equations for Flow Reactors
Problems on Ideal Reactors
Applications of Design Equations for Continuous – Flow Reactors
Choosing of Right Reactor Series or Connections (Maximum Profitability)
Space Time and Space Velocity
Some Further Definitions

6. Questions on Rate Laws and Stoichiometry

The section contains questions on rate laws, stoichiometry definitions, reaction order, elementary rate law, reversible reactions rate laws, constant – volume batch reaction systems, stoichiometry of batch and flow systems, batch and flow systems concentrations equations.

Rate Laws and Stoichiometry Definitions
Reaction Order and Elementary Rate Law
Non – Elementary Rate Laws
Reversible Reactions Rate Laws
Constant – Volume Batch Reaction Systems
Batch Reactors with Variable Volume
Reaction Rate Constant and Activation Energy Concept
Stoichiometry of Batch Systems
Equations for Batch Concentrations
Stoichiometry of Flow Systems
Equations for Concentrations in Flow Systems
Flow Reactors with Variable Volumetric Flow Rate

7. Questions & Answers on Isothermal Reactor Design

The section contains questions and answers on cstrs design, conversion and volume related problems, tubular reactor, packed bed flow, pipes pressure drop, chemical plant design, pfrs, pbrs and batch reactors, micro and membrane reactors, cstr startup, semibatch reactor, isothermal semibatch reactor, semibatch reactor equations and equilibrium conversions.

Design of CSTRS in Series
Determination of K from Batch Data
Design of a Single CSTR
Design of CSTRS in Parallel
Conversion and Volume Related Problems
Tubular Reactor
Pressure Drop in Reactors
Flow through Packed Bed
Pressure Drop in Pipes
Effect of Pressure Drop on Conversion Profile
Calculating Conversion in a Reactor with Pressure Drop
Design of a Chemical Plant
Mole Balances on CSTRS, PFRs, PBRs and Batch Reactors
Micro Reactors
Membrane Reactors
Mole Balance Equation on Membrane Reactors
Use of Membrane Reactors to Increase Selectivity
Unsteady State Operation of Stirred Reactors
Startup of a CSTR
Semibatch Reactor
Isothermal Semibatch Reactor with Second Order Reaction
Semibatch Reactor Equations in Terms of Conversion
Equilibrium Conversion

8. Questions on Collection and Analysis of Rate Data

The section contains questions on half lives method, analysis differential, integral and numerical methods, polynomial fit, rate law determining, rate law parameters, nonlinear regression, initial rates method and differential reactors.

Method of Half Lives
Differential Method of Analysis
Integral Method of Analysis
Numerical Method of Analysis
Polynomial Fit
Determining the Rate Law
Finding the Rate Law Parameters
Nonlinear Regression
Method of Initial Rates
Differential Reactors

9. Questions & Answers on Potpourri of Multiple Reactions, Design for Single & Parallel Reactions

The section contains questions and answers on autocatalytic reactions, parallel reactions, irreversible series, selectivity and reactor yield.

Autocatalytic Reactions
Selectivity and Reactor Yield
Reactions in Parallel
Irreversible Series – Parallel Reactions

10. Questions on Catalysis and Catalytic Reactions

The section contains questions on catalysts, catalytic reaction steps, rate law mechanism and rate limiting step.

Steps in Catalytic Reaction
Synthesizing Rate Law Mechanism, Rate Limiting Step
General Characteristics

11. Questions & Answers on Solid Catalysed Reactions & Transport Processes with Reactions Catalyzed by Solids

The section contains questions and answers on pore diffusion resistance, non isothermal particles, mass and heat transfer resistances.

Pore Diffusion Resistance
Mass and Heat Transfer Resistances
Non Isothermal Particles

12. Questions on Fluid-Particle Reactions: Kinetics

The section contains questions on fluid particle reactors design, rate determination and gas film diffusion controls.

Design of Fluid Particle Reactors
Determination of The Rate – Controlling Step
Gas Film Diffusion Controls

13. Questions & Answers on Packed Bed Catalytic Reactor, Fluidised Bed and Transport Reactors

The section contains questions and answers on adsorption mechanisms, catalytic reactors and fluidised bed catalytic cracking.

Adsorption Mechanisms
Catalytic Reactors
Fluidised Bed Catalytic Cracking

14. Questions on Suspended Solid Reactors, Catalyst Deactivation, Diffusion and Reaction

The sections covers questions on catalyst deactivation mechanisms and kinetics, poisoning, suspended solid and multiphase reactors.

Mechanisms of Catalyst Deactivation
Suspended Solid Reactors
Multiphase Reactors
Kinetics of Catalyst Deactivation by Coke Formation

15. Questions & Answers on Distribution of Residence Time for Chemical Reactors

The section contains questions and answers on heat effects, rtd measurement, diagnostics, troubleshooting, one and two parameter models, residence time distribution function, pulse input and sep tracer experiments, cumulative distribution function, skewness, normalised rtd function, laminar flow reactor, cstr and tubular reactor perfect operation, bypassing and dead volume, intensity function, segregation and maximum mixedness models.

Heat Effects
Measurement of RTD
RTD in Ideal Reactors
One Parameter Model
Two Parameter Model
Residence Time Distribution (RTD) Function
Pulse Input Experiment for Measurement of RTD
Step Tracer Experiment for Measurement of RTD
Cumulative Distribution Function
Mean Residence Time
Standard Deviation or the Spread of Distribution
Normalised RTD Function
Internal Age Distribution
Laminar Flow Reactor
CSTR Perfect Operation
CSTR Bypassing
CSTR Dead Volume
Tubular Reactor Perfect Operation
Tubular Reactor Bypassing
Tubular Reactor Dead Volume
Reactor Modelling Using the RTD
Segregation Model
Maximum Mixedness Model
Intensity Function
RTD and Multiple Reactors – Segregation Model
RTD and Multiple Reactors – Maximum Mixedness Model

16. Questions on Complex Flow Patterns, Temperature and Pressure Effects

The section contains questions on equilibrium conversion, rate constant temperature, macro and micro mixing in reactors.

Equilibrium Conversion
Temperature Dependence of Rate Constant
Macro and Micro- Mixing in Reactors

17. Questions & Answers on Fluid-Fluid Reactions: Kinetics & Basics of Non Ideal Flow

The section contains questions and answers on absorption systems with chemical reaction, fluid-fluid reactors design, reactors combination, non ideal flow reactors conversion, c, f and e curves properties.

Absorption Systems with Chemical Reaction
Design of Fluid Fluid Reactors
Properties of C, F and E Curves – 1
Properties of C, F and E Curves – 2
RTD for Combination of Reactors
Conversion in Non Ideal Flow Reactors

18. Questions on Compartment Models, Models for Non Ideal Reactors

The section contains questions on series model in tanks, dispersion model, diagnosing reactor ills, flow, reaction and dispersion, tubular reactor dispersion with laminar flow, non ideal reactors flow, comparison between series and dispersion models.

Tanks in Series Model
Dispersion Model
Diagnosing Reactor Ills
Flow, Reaction and Dispersion
Dispersion in a Tubular Reactor with Laminar Flow
Non Ideal Reactors Flow
Reaction and Dispersion
Tanks in Series Model vs Dispersion Model

19. Questions & Answers on Bioreactors, Enzyme and Microbial Fermentation

The section contains questions and answers on microbial fermentation, fermenter and bioreactors.

Microbial Fermentation – 1
Microbial Fermentation – 2
If you would like to learn Chemical Reaction Engineering thoroughly, you should attempt to work on the complete set of questions and answers mentioned above. It will immensely help anyone trying to crack an exam or an interview.

Here’s the list of Best Reference Books in Chemical Reaction Engineering.

Wish you the best in your endeavor to learn and master Chemical Reaction Engineering!

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