GATE Thermodynamics Syllabus (XE_E) 2024 – Download GATE Syllabus in PDF


Thermodynamics is the branch that deals with the study of heat energy. The syllabus consists of the topics from which the questions are formed in the exam paper. The candidates must be thorough and updated with the syllabus to ace the exam. This article will give you complete information regarding the GATE Thermodynamics Syllabus 2024.

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GATE Thermodynamics Syllabus (XE_E) 2024

GATE Thermodynamics Syllabus (XE_E) consists of Seven Section, consists of Basic Concepts, First Law of Thermodynamics, Second Law of Thermodynamics,  Properties of Pure Substances,  Thermodynamic Relations,  Thermodynamic Cycles,  Ideal Gas Mixtures.

Basic 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; the 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 vapour phases; P-vT 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

T-ds 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 vapour cycle, ideal Rankine cycle, Rankine Reheat cycle, air-standard Otto cycle, air-standard Diesel cycle, air-standard Brayton cycle, vapour-compression refrigeration cycle.

Ideal Gas Mixtures

Dalton’s and Amagat’s laws, properties of ideal gas mixtures, air-water vapour mixtures and simple thermodynamic processes involving them; specific and relative humidities, dew point and wet bulb temperature, adiabatic saturation temperature, psychrometric chart.


Candidates are recommended to perform a diligent analysis of their syllabus. In the GATE examination, we advise you to focus on the syllabus and prepare a strategy accordingly. Take as many mock tests as possible. They help you to understand your weaknesses and strengths.

Be consistent and stick to a healthy routine.

Good luck with your preparation!

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