GATE Thermodynamics Syllabus 2026 (Out) - Check Topic Wise Syllabus Weightage

GATE Thermodynamics Syllabus 2026 (Out) - Check Topic Wise Syllabus Weightage

Team Careers360Updated on 11 Dec 2025, 03:43 PM IST

GATE Thermodynamics syllabus 2026 - IIT Guwahati has uploaded the GATE 2026 syllabus for thermodynamics syllabus on the official website, gate2026.iitg.ac.in.Thermodynamics is a part of the GATE Mechanical Engineering (ME) 2026 paper. 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 authority will conduct the GATE 2026 exam on February 7, 8, 15 and 16, 2026. The GATE ME 2026 exam is scheduled for February 14, 2026. Aspirants can check the GATE Thermodynamics syllabus PDF download link below.
Direct link to check the GATE 2026 Thermodynamics syllabus

This Story also Contains

  1. GATE 2026 Thermodynamics Syllabus
  2. GATE Thermodynamics Exam Pattern 2026
  3. GATE Preparation Tips 2026
GATE Thermodynamics Syllabus 2026 (Out) - Check Topic Wise Syllabus Weightage
GATE Thermodynamics syllabus

The Thermodynamics subject is one of the optional subjects in the Engineering Sciences(XE) paper of the GATE 2026 exam. 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.

GATE 2026 Thermodynamics Syllabus

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.

GATE Thermodynamics Syllabus

ChaptersTopics

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.

Related links:

GATE Thermodynamics Exam Pattern 2026

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.

GATE Engineering Sciences Exam Pattern 2026

Particulars

Details

Examination Mode

Computer Based Test (Online)

Duration

3 Hours

Section

  • General Aptitude (GA)

  • Engineering Mathematics (XE-A)

  • Thermodynamics (XE-E)

  • Additional section opted for by the student

Type of Questions

  • Multiple Choice Questions (MCQs)

  • Multiple Select Questions (MSQs)

  • Numerical Answer Type (NAT) Questions

Total Marks

100 Marks

Marking Scheme

All of the questions will be worth 1 or 2 marks

GATE Negative Marking

  • MCQs - 1 mark for each correct answer; 1/3 mark will be deducted for every wrong answer.

  • MCQs - 2 marks for each correct answer; 2/3 marks will be deducted for every incorrect response.

  • No negative marking for MSQ & NAT.

  • No partial marking for MSQ type questions.

GATE Thermodynamics - Other Optional Papers

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.

List of optional subjects under Engineering Sciences

Subjects

GATE Syllabus

Polymer Science and Technology

GATE Polymer Science and Technology syllabus

Solid Mechanics

GATE Solid Mechanics syllabus

Fluid Mechanics

GATE Fluid Mechanics syllabus

Atmospheric and Oceanic Sciences

GATE Atmospheric and Oceanic Sciences syllabus

Material Science

GATE syllabus for Material science

Food Technology

GATE Food Technology syllabus

Energy Science_

GATE Preparation Tips 2026

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.

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Frequently Asked Questions (FAQs)

Q: Is the GATE 2026 thermodynamics syllabus released?
A:

Yes, the GATE thermodynamics syllabus 2026 has been released on the official website, gate2026.iitg.ac.in.

Q: What is the syllabus of thermodynamics for GATE?
A:

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.

Q: Who will conduct GATE 2026?
A:

IIT Guwahati will conduct the GATE 2026 exam in online mode. 

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Questions related to GATE

On Question asked by student community

Have a question related to GATE ?

Hello aspirant,

If you missed the correction window for GATE 2026, the portal will not allow changes right now. Usually, IIT opens a correction period only once. Since you need to change your surname, the best option is to contact the GATE organizing institute through their official support email or helpline and explain your issue with valid proof like your Aadhaar or school documents. They sometimes allow corrections in genuine cases, but it depends on their approval. Make sure to keep all documents ready when you contact them.

FOR REFERENCE : https://engineering. careers360.com/articles/gate-application-form-correction

THANK YOU

Hi Aanchal,

Balancing Engineering semester exams with competitive exam preparation can feel confusing but with right and realistic routine makes it very achievable.

Start by dividing your day into two parts: use college hours and afternoons for semester prep and keep early mornings or late evenings for GATE prep.

Make weekly targets instead of daily pressure, revise class notes on the same day.

Use weekends for mock tests, previous year papers and deeper revision.

Try to limit social media, study in 40 to 50 mins focused blocks and take short breaks.

Most importantly stay consistent and give yourself patience.

With consistent timetable and steady effort you can manage both in smooth. All the best Aanchal!

If you are interested in Development Studies and planning to appear for GATE XH C6 (Sociology), then you are already moving in the right direction. Having a backlog does not disqualify you from pursuing higher studies, as long as you clear it before the admission process begins. Since you mentioned that you can clear the backlog before February 2026, it should not affect your eligibility for PG admissions. Most universities require a completed bachelor’s degree with no active backlog at the time of admission.

Your CGPA of 6.9 is acceptable for many institutes, although some top institutes may have higher cutoffs. Your interest in sociology and Development Studies will be helpful because the GATE XH paper tests conceptual understanding. If you prepare consistently and score well in GATE, you can apply to reputed institutes offering Development Studies such as IITs, TISS, JNU, Azim Premji University, and others.

Focus on clearing your remaining backlog and continue your GATE preparation strongly. If you balance both, you can build a good academic profile for admission into Development Studies. All the best.


Hello,

You can change your category in the GATE application by logging into the GOAPS portal during the correction window and using the "Edit GATE Application Form" option to make the change. You will likely need to pay an additional fee for the change and may need to provide a valid category certificate.

I hope it will clear your query!!