GATE CH study materials
GATE CH study resources

GATE CH study plan

GATE CH · Give each week a clear focus.

8 weeks · About 6 hours per week

Week 1

Chemical Engineering

  • Build a one-page formula sheet covering material and energy balances, and unit conversions for mass, mole, pressure, and temperature

  • Solve 15 steady-state material balance problems on single and multiple units, including recycle, bypass, and purge streams

  • Solve 10 energy balance problems involving sensible heat, latent heat, and heat of reaction using reference-state methods

  • Set up and solve 5 combined material-and-energy balance problems on reactive systems

  • Diagnose and correct common sign and basis errors by reworking every missed problem into a short error log

Your checkpoint

A completed formula sheet plus a 30-problem worked set with an error log classifying each mistake by type (basis, sign, unit, concept)

Week 2

Chemical Engineering

  • Derive and apply rate laws for batch, CSTR, PFR, and PBR reactors for first-order, second-order, and zero-order kinetics

  • Solve 12 reactor sizing problems using conversion, space time, and residence time relationships

  • Analyze series and parallel reactor arrangements and select the better configuration for a given rate-conversion curve

  • Solve 6 non-isothermal reactor problems using the energy balance coupled to the design equation

  • Interpret and use Levenspiel plots to determine reactor volume and configuration

Your checkpoint

A reactor design problem set of 20 solved problems with a comparison table of reactor types showing design equation, volume, and assumptions

Week 3

Chemical Engineering

  • Apply Fick's first and second laws to steady and unsteady diffusion in slabs, cylinders, and spheres

  • Solve 10 mass transfer problems involving diffusion with homogeneous reaction and equimolar counter-diffusion

  • Compute individual and overall mass transfer coefficients and convert between driving-force conventions

  • Analyze absorption and stripping columns using operating lines, minimum solvent rate, and Kremser or graphical methods

  • Apply HTU-NTU and HETP concepts to packed column sizing

Your checkpoint

A mass transfer summary sheet of key equations and conventions plus 15 solved problems, including 3 full absorption column designs

Week 4

Chemical Engineering

  • Solve 12 heat transfer problems covering conduction in composite walls and cylinders, including fins and contact resistance

  • Apply convection correlations for internal and external flow, and evaluate the appropriateness of each correlation

  • Perform LMTD and effectiveness-NTU calculations for shell-and-tube and cross-flow exchangers

  • Compute radiation heat transfer between gray surfaces using view factors and the network method

  • Analyze unsteady conduction using lumped capacitance and Heisler charts

Your checkpoint

A timed 90-minute mock test of 20 heat transfer questions scored and reviewed, with every wrong answer traced to a missing equation or concept

Week 5

Chemical Engineering

  • Build and interpret McCabe-Thiele diagrams for binary distillation, including q-line, reflux ratio, and stage count

  • Solve 8 distillation problems to find minimum reflux, minimum stages, and actual stage efficiency

  • Analyze liquid-liquid extraction and leaching using ternary diagrams and right-triangle coordinates

  • Solve 6 drying problems using drying-rate curves, critical moisture content, and drying time equations

  • Apply humidification and dehumidification concepts to psychrometric chart problems

Your checkpoint

A separation processes problem portfolio of 20 solved problems including at least 4 complete McCabe-Thiele constructions with labeled diagrams

Week 6

Chemical Engineering

  • Solve 10 fluid mechanics problems applying Bernoulli, continuity, and momentum balances to pipe networks and fittings

  • Compute friction factors for laminar and turbulent flow using the Moody chart and Colebrook correlation

  • Select and size pumps and compressors using system curves, NPSH, and affinity laws

  • Analyze flow through packed beds and fluidized beds using Ergun and minimum fluidization velocity relations

  • Solve 5 particle mechanics problems involving terminal velocity, settling, and classification

Your checkpoint

A fluid mechanics and mechanical operations problem set of 20 solved problems with a pump selection worked example and a fluidization regime summary

Week 7

Chemical Engineering

  • Review thermodynamics fundamentals: equations of state, fugacity, activity coefficients, and phase equilibrium

  • Solve 8 vapor-liquid equilibrium problems using Raoult's law, modified Raoult's law, and Henry's law

  • Apply the first and second laws to power cycles and refrigeration cycles, computing efficiency and COP

  • Solve 6 chemical equilibrium problems using equilibrium constants and extent of reaction

  • Review process control basics: transfer functions, PID tuning, stability, and control valve characteristics

Your checkpoint

A thermodynamics and process control review sheet plus a 15-problem set covering VLE, cycles, and control loops

Week 8

Chemical Engineering

  • Take two full-length timed mock tests under exam conditions and score them against the marking scheme

  • Rework every incorrect or guessed question until the underlying method is reproduced without notes

  • Consolidate all formula sheets into one indexed reference and drill the 20 most error-prone equations

  • Practice rapid estimation and unit-consistency checks to eliminate options on numerical questions

  • Build a final-week revision checklist mapped to each topic area and confirm coverage of every syllabus item

Your checkpoint

Two scored full-length mock tests with a gap analysis report listing weak topics, a remediation action for each, and a finalized one-page master formula sheet

Milestones