GATE 2026 Chemical Engineering (CH) Syllabus OUT: Check Dates, Books, Syllabus, and More

Engineering Mathematics

Matrix algebra | systems of linear equations | eigenvalues and eigenvectors

Calculus

Functions of single variable | limit, continuity and differentiability | Taylor series | Gauss and Green’s theorems | Maxima and Minima | Surface and Volume Integrals

Differential Equations

First-order equations (linear and non-linear) | Higher-order linear differential equations with constant coefficients | Laplace transforms | Solutions of one-dimensional heat and wave equations and Laplace equation

Complex Variables

Complex number | Polar form of complex number and triangle inequality

Probability and Statistics

Definitions of Probability and Sampling Theorems | Conditional Probability | Mean, median, mode and standard deviation | Random variables | 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 Numerical Solution of Differential Equations

Process Calculations and Thermodynamics

Steady and Unsteady State Mass and Energy Balances, including Multiphase | Multi-Component | 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 | 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 Coeffcients | Phase Equilibria: Predicting VLE of systems| Chemical Reaction Equilibrium

Fluid Mechanics and Mechanical Operations

Fluid Statistics | Newtonian and Non-Newtonian Fluids | Equation of Continuity | Macroscopic Friction Factors | Dimensional Analysis and Similitude | Flow Through Pipelines Systems | Elementary Boundary Layer Theory | Turbulent Flow: Fluctuating Velocity, Universal Velocity Profile and Pressure Drop | Particle Size and Shape | Centrifuge and Cyclones | Thickening and Classification | 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 and 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 Enzyme Reactions (Michaelis-Mentenand Monod Models) | Residence Time Distribution | Single Parameter Model | Non-Isothermal Reactors | Kinectics of Heterogenous Catalytic Reactions | Diffusion Effects in Catalysis | Rate and Performance Equations for Catalyst Deactivation

Instrumentation and Process Control

Measurement of Process Variables | Sensors and Transducers | Process Modeling and Linearization | Transfer Functions and Dynamic Responses of Various Systems | Systems with Inverse Response | Process Reaction Curve | Control Valves | 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 annualised cost | Cost indices, Rate of Return, Payback period, and Sizing of Chemical Engineering Equipments, such as Heat Exchangers and Multistage Contractors

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)

Download

An Insight to Chemical Engineering

M.Subbu

Introduction to Chemical Engineering Thermodynamics

JM Smith

GATE Guide for Chemical Technology

GKP Publications

Mechanical Operations for Chemical Engineering

Narayan C.M  and Bhattacharyya B.C

Chemical Engineering for GATE Principles Solved Problems and Objective-Type Questions

Ram Prasad