GATE Chemical Engineering Syllabus: Important Chapters, Marks Weightage, Question Papers, and Recommended Books
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Content Curator | Updated On - Aug 6, 2025
GATE Chemical Engineering Syllabus is officially published by IIT Roorkee. The important subjects for chemical engineering include Engineering Mathematics, Process Calculations and Thermodynamics, Heat Transfer, Mass Transfer, Plant Design and Economics, Chemical Technology, etc. The sectional weightage of the topics of the examination is as follows:
- The core subjects constitute nearly 72% of the total syllabus.
- The remaining 15% and 13% are reserved for General Aptitude and Engineering Mathematics sections respectively.
To cover the syllabus, you must follow the preparation materials. Some of the recommended books to cover the syllabus are as follows:
- Engineering Mathematics by B.S. Grewal
- Introduction To Fluid Mechanics by Yunus A. Cengel and John M. Cimbala
- Heat Transfer by Binay.K.Dutta
- Mass Transport Phenomena by Christie J. Geankoplis
- Chemical Technology by Gopala Rao M. and Marshall
GATE 2026 Chemical Engineering Syllabus
GATE exam syllabus for the 2026 year consists of topics like engineering mathematics, Process Calculations, Fluid Mechanics, Heat Transfer, etc. The table below shows the important subjects and their topics for candidates:
| Subjects | Topics |
|---|---|
| Engineering Mathematics | Linear Algebra: Matrix algebra, Systems of linear equations, eigenvalues, and eigenvectors. Calculus: Functions of a single variable, Limit, continuity and differentiability, Taylor series, mean value theorems, Evaluation of definite and improper integrals, Partial derivatives, Total derivative, Maxima and minima, Gradient, Divergence and Curl, Vector identities, Directional derivatives, Line, Surface and Volume integrals, Stokes, Gauss, and Green’s theorems. Differential equations: First-order equations (linear and nonlinear), Higher order linear differential equations with constant coefficients, Cauchy’s and Euler’s equations, Initial and boundary value problems, Laplace transforms, Solutions of one-dimensional heat and wave equations, and Laplace equation. Complex variables: Complex number, polar form of complex number, triangle inequality Probability and Statistics: Definitions of probability and sampling theorems, Conditional probability, Mean, median, mode and standard deviation, Random variables, Poisson, Normal and Binomial distributions, Linear regression analysis Numerical Methods: Numerical solutions of linear and non-linear algebraic equations. Integration by trapezoidal and Simpson’s rule. Single and multi-step methods for the numerical solution of differential equations |
| Process Calculations and Thermodynamics | Steady and unsteady state mass and energy balances include multiphase, multicomponent, reacting, and non-reacting systems. Use of tie components; recycle, bypass, and purge calculations; Gibb’s phase rule and degree of freedom analysis First and Second laws of thermodynamics. Applications of first law to close and open systems. Second Law and Entropy. Thermodynamic properties of pure substances: Equation of State and residual properties, properties of mixtures: partial molar properties, fugacity, excess properties, and activity coefficients; phase equilibria: predicting VLE of systems; chemical reaction equilibrium |
| Fluid Mechanics and Mechanical Operations | Fluid statics, surface tension, Newtonian and non-Newtonian fluids, transport properties, shell-balances including differential form of Bernoulli equation and energy balance, equation of continuity, equation of motion, equation of mechanical energy, Macroscopic friction factors, dimensional analysis, and similitude, flow through pipeline systems, velocity profiles, flow meters, pumps and compressors, elementary boundary layer theory, flow past immersed bodies including packed and fluidized beds, Turbulent flow: fluctuating velocity, universal velocity profile, and pressure drop. Particle size and shape, particle size distribution, size reduction and classification of solid particles; free and hindered settling; centrifuge and cyclones; thickening and classification, filtration, agitation and mixing; conveying of solids. |
| Heat Transfer | Equation of energy, steady and unsteady heat conduction, convection and radiation, thermal boundary layer and heat transfer coefficients, boiling, condensation, and evaporation; types of heat exchangers and evaporators and their process calculations; design of double pipe, shell, and tube heat exchangers, and single and multiple effect evaporators. |
| Mass Transfer | Fick’s laws, molecular diffusion in fluids, mass transfer coefficients, film, penetration, and surface renewal theories; momentum, heat, and mass transfer analogies; stage-wise and continuous contacting and stage efficiencies; HTU & NTU concepts; design and operation of equipment for distillation, absorption, leaching,liquid-liquid extraction, drying, humidification, dehumidification and adsorption, membrane separations (micro-filtration, ultra-filtration, nano-filtration and reverse osmosis). |
| Chemical Reaction Engineering | Theories of reaction rates; kinetics of homogeneous reactions, interpretation of kinetic data, single and multiple reactions in ideal reactors, kinetics of enzyme reactions (Michaelis-Menten and Monod models), non-ideal reactors; residence time distribution, single parameter model; non-isothermal reactors; kinetics of heterogeneous catalytic reactions; diffusion effects in catalysis; rate and performance equations for catalyst deactivation. |
| Instrumentation and Process Control | Measurement of process variables; sensors and transducers; P&ID equipment symbols; process modeling and linearization, transfer functions and dynamic responses of various systems, systems with the inverse response, process reaction curve, controller modes (P, PI, and PID); control valves; transducer dynamics; analysis of closed-loop systems including stability, frequency response, controller tuning, cascade, and feed-forward control. |
| Plant Design and Economics | Principles of process economics and cost estimation including depreciation and total annualized cost, cost indices, rate of return, payback period, discounted cash flow, optimization in process design, and sizing of chemical engineering equipment such as heat exchangers and multistage contactors. |
| Chemical Technology | Inorganic chemical industries (sulfuric acid, phosphoric acid, chlor-alkali industry), fertilizers (Ammonia, Urea, SSP, and TSP); natural products industries (Pulp and Paper, Sugar, Oil, and Fats); petroleum refining and petrochemicals; polymerization industries (polyethylene, polypropylene, PVC and polyester synthetic fibers). |
Sample Questions for GATE 2026 Chemical Engineering
It is recommended to solve the previous year's question papers as a part of your preparation. Some sample questions of chemical engineering are as follows:
- Sample Question 1: “When she fell down the _______, she received many _______ but little help.” The words that best fill the blanks in the above sentence are?
- Sample Question 2: For 0 ≤ x ≤ 2π, sin x and cos x are both decreasing functions in the interval___________?
- Sample Question 3: A set of 4 parallel lines intersect with another set of 5 parallel lines. How many parallelograms are formed?
- Sample Question 4: For a chemical reaction, the ratio of the rate constant at 500 K to that at 400 K is 2.5. Given R= 8.314 J mol-1 K-1, the value of activation energy (in kJ/mol) is_________?
GATE 2026 Sectional Weightage
The sectional weightage varies according to the importance of the chemical engineering topics. Here, given below are the important sections along with their weightage:
| Section | Topics |
| Enginnering Mathematics | 13% |
| General Aptitude | 15% |
| Other topics | 72% |
GATE 2026 Marks Weightage Details
There are three types of questions in the chemical engineering exam pattern. We have given below the marks weightage details of the important topics in the syllabus:
Weightage of Sections from Chemical Engineering:
| Topic | Weightage |
|---|---|
| Fluid Mechanics | 15 |
| Heat and Mass Transfer | 20 |
| Plant Design | 5 |
| Chemical Technology | 12 |
Weightage of Sections from General Aptitude:
| Topic | Weightage (Marks) |
|---|---|
| Grammar | 2 |
| Sentence Completion | 2 |
| Synonyms and Antonyms | 4 |
| Sentence Completion | 2 |
| Reasoning Ability | 4 |
| Data Interpretation | 2 |
| Numerical Method | 5 |
GATE 2026 Chemical Engineering Marking Scheme
Guidelines Shared by a GATE Candidate
Ques. Can a BSc zoology student appear for GATE chemical engineering paper?
Ans. Yes, you can appear for the GATE chemical engineering paper if you are a BSc zoology student.
Ques. How many marks are there for the aptitude section?
Ans. The aptitude section is covered in 15 marks. The important topics of the aptitude section include Grammar, Sentence Completion, Synonyms and Antonyms, Sentence Completion, etc.
Ques. Is the chemical engineering a field job?
Ans. Yes, initially chemical engineering is a field job. However, some candidates also get the opportunity to work in the control room, corporate office, and design departments.
Ques. My GATE rank is 123. Can I get into PSU like IOCL?
Ans. Yes, you can get into PSU like IOCL with a rank of 123. It is a very good rank.
Ques. I have done my master's in food technology. Can I appear for the GATE examination?
Ans. Yes, you can appear for the GATE examination. However, you must start your preparations as early as possible for the 2026 examination.
GATE 2026 Previous Year Question Papers
A list of previous year's question papers is given below for your reference:
| Year | Question Paper |
|---|---|
| 2023 | Check Here |
| 2022 | Check Here |
| 2021 | Check Here |
| 2020 | Check Here |
| 2019 | Check Here |
| 2018 | Check Here |
Recommended Books for GATE Chemical Engineering
Following the latest books to score well in the examination is advisable. The table below shows a list of recommended books that you can refer to for effective preparation:
| Subject | Book | Author |
|---|---|---|
| Engineering Mathematics | Engineering Mathematics | B.S. Grewal |
| Fluid Mechanics | Introduction To Fluid Mechanics (English) 7th Edition | Yunus A. Cengel, John M. Cimbala |
| Heat Transfer | Heat Transfer | Binay.K.Dutta |
| Mass Transfer | Mass Transport Phenomena | Christie J. Geankoplis |
| Process Dynamics and Control | Process Systems Analysis and Control | Donald R. Coughanowr & Steven E. LeBlanc |
| Dryden’s Outlines of Chemical Technology | Chemical Technology | Gopala Rao M. and Marshall |
| All in One | Chemical Engineering Solved Papers GATE | Nikhil Kr. Gupta |
*The article might have information for the previous academic years, please refer the official website of the exam.
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Answered Questions
For the UG Engineering courses, candidates need to have 10+2 with 45% for the general category. However, the aggregate percentage will be 40% for SC/ST/OBC. For the PG Engineering courses, candidates need to have graduation with 50% and 45% for the SC/ST/OBC.
The Fee for the B.Tech Computer Science and Engineering at VIT University is INR 1.73 Lakhs with an INR 3k caution deposit which is refundable and a One-time payment only.
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