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GATE Thermodynamics syllabus 2026 - IIT Guwahati has uploaded the GATE 2026 thermodynamics syllabus online on the official website, gate2026.iitg.ac.in. Candidates can check the detailed GATE Thermodynamics syllabus pdf from this page. Students appearing for the GATE exam must prepare all the topics mentioned in the syllabus. The GATE thermodynamics syllabus includes seven chapters. These include basic concepts of thermodynamics, the First Law of Thermodynamics, the Second Law of Thermodynamics, Properties of Pure Substances, Thermodynamic Relations, Thermodynamic Cycles and Ideal Gas Mixtures. The Thermodynamics subject is one of the optional subjects in the Engineering Sciences(XE) paper of the GATE 2026 exam.
Direct link to check the GATE 2026 Thermodynamics syllabus
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The paper code for Thermodynamics is XE-E. The authorities will prepare the GATE question paper as per the thermodynamics syllabus. Candidates must be thorough with all the topics mentioned in the GATE syllabus will ensure high scores in the exam. Along with the syllabus, candidates must check the GATE2026 exam pattern. Candidates can check the detailed topics-wise GATE thermodynamics syllabus 2026 in this article.
IIT Guwahati has published the GATE thermodynamics syllabus 2026 pdf on the official website. The Engineering Mathematics section is compulsory and holds 15% weightage. The topic-wise GATE thermodynamics syllabus as per this year's notification is provided in the table below.
Chapters | Topics |
---|---|
Basics Concepts | Continuum and macroscopic approach; thermodynamic systems (closed and open); thermodynamic properties and equilibrium; state of a system, state postulate for simple compressible substances, state diagrams, paths and processes on state diagrams; concepts of heat and work, different modes of work; zeroth law of thermodynamics; concept of temperature |
First Law of Thermodynamics | Concept of energy and various forms of energy; internal energy, enthalpy; specific heats; first law applied to elementary processes, closed systems and control volumes, steady and unsteady flow analysis |
Second Law of Thermodynamics | Limitations of the first law of thermodynamics, concepts of heat engines and heat pumps/refrigerators, Kelvin-Planck and Clausius statements and their equivalence; reversible and irreversible processes; Carnot cycle and Carnot principles/theorems; thermodynamic temperature scale; Clausius inequality and concept of entropy; microscopic interpretation of entropy, the principle of increase of entropy, T-s diagrams; second law analysis of control volume; availability and irreversibility; third law of thermodynamics |
Properties of Pure Substances | Thermodynamic properties of pure substances in solid, liquid and vapor phases; PvT behaviour of simple compressible substances, phase rule, thermodynamic property tables and charts, ideal and real gases, ideal gas equation of state and van der Waals equation of state; law of corresponding states, compressibility factor and generalized compressibility chart |
Thermodynamic Relations | TdS relations, Helmholtz and Gibbs functions, Gibbs relations, Maxwell relations, Joule-Thomson coefficient, coefficient of volume expansion, adiabatic and isothermal compressibilities, Clapeyron and Clapeyron-Clausius equations |
Thermodynamic Cycles | Carnot vapor cycle, ideal Rankine cycle, Rankine reheat cycle, air-standard Otto cycle, airstandard Diesel cycle, air-standard Brayton cycle, vapor-compression refrigeration cycle |
Ideal Gas Mixtures | Dalton’s and Amagat’s laws, properties of ideal gas mixtures, air-water vapor mixtures and simple thermodynamic processes involving them; specific and relative humidities, dew point and wet bulb temperature, adiabatic saturation temperature, psychrometric chart. |
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Candidates aspiring for the GATE thermodynamics (XE-E) paper must check the exam pattern to familiarise themselves with the question paper format. The authority has released the GATE 2026 thermodynamics exam pattern on the official website. It is important to note that candidates who opt for XE paper have to choose any two subjects.
Particulars | Details |
---|---|
Examination Mode | Computer Based Test (Online) |
Duration | 3 Hours |
Section |
|
Type of Questions |
|
Total Marks | 100 Marks |
Marking Scheme | All of the questions will be worth 1 or 2 marks |
GATE Negative Marking |
|
As per this year's GATE thermodynamics paper pattern, candidates have to select an additional GATE exam paper along with thermodynamics. Candidates can check the list of subjects available alongside thermodynamics to appear for the GATE 2026 exam below. The following table will be updated soon after the official announcement.
Subjects | GATE Syllabus |
Polymer Science and Technology | |
Solid Mechanics | |
Fluid Mechanics | |
Atmospheric and Oceanic Sciences | |
Material Science | |
Food Technology | |
Energy Science | _ |
Candidates preparing for the upcoming GATE 2026 exam can check the GATE preparation tips. The preparation tips will help candidates prepare for the exam strategically.
Understand the GATE 2026 exam pattern and syllabus before starting the preparation.
Create a study pattern and follow it rigorously.
Know the high-weightage topics of the GATE 2026 syllabus and pay special attention to them.
Pick the Correct Reference Materials
Know your strengths and work on weaker areas.
Attempt mock tests to know the paper pattern.
Frequently Asked Questions (FAQs)
Yes, the GATE thermodynamics syllabus 2026 has been released on the official website, gate2026.iitg.ac.in.
IIT Guwahati will conduct the GATE 2026 exam in online mode.
The GATE thermodynamics syllabus comprises 7 chapters including basic concepts, laws of thermodynamics, properties of pure substances, thermodynamic relations, thermodynamic cycles, and ideal gas mixtures.
On Question asked by student community
Hello,
Yes, you can change your category from General to OBC in the GATE application form. This can be done during the correction window, which typically opens after the last date for application submission.
You will need to pay a correction fee of Rs. 500. Please ensure you upload a valid OBC certificate as per the prescribed format and date mentioned by GATE.
To make the change, log in to the GOAPS portal, navigate to the "Change personal data" section, and update your category. Submit the changes and pay the required fee.
Remember to complete the correction before the deadline, as no changes will be accepted after the final date.
Hope it helps !
Hello,
You can register for GATE on the official GATE website : gate2025.iitr.ac.in (https://gate2025.iitr.ac.in/)
Steps to register:
Go to the GATE website.
Click on “GATE Online Application Processing System (GOAPS)” .
Create a new account with your email and mobile number.
Fill in your personal, educational, and exam details .
Upload your photo, signature, and documents as required.
Pay the application fee online using net banking, credit/debit card, or UPI .
After payment, you will get a confirmation and your application will be submitted.
Hope it helps !
Hello Candidate,
The last date for registration of GATE examination is 28 September 2025 without late fee. But there is 9th October 2025 is last date with late fee .
So Don't be late or fill the form.
Thank you
Hello Candidate,
You can get free study material from here and also you can download it :
https://engineering.careers360.com/articles/gate-preparation-material
https://engineering.careers360.com/articles/best-gate-preparation-materials
Here is study material, question papers, preparation tips and much more.
Hey! If you want to make changes in your GATE application after submission, you can do it through the correction window on the official GOAPS website. Log in with your enrollment ID or email and password, click on Application Form Correction, and make the necessary edits like personal details, academic info, exam paper, category, or exam centre. Some changes may require a small fee. After editing, submit the form and download the updated copy for your records.
Remember, the correction window is open for a limited time, so make the changes before the deadline.
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