Basic Engineering Thermodynamics


UNIT I – BASIC CONCEPTS AND FIRST LAW                                                                               

Basic concepts, Concept of continuum, Microscopic and Macroscopic approach, Thermodynamic systems (closed, open, isolated), control volume, property, point and path functions, Thermodynamic equilibrium, State, Path and process, Reversible and Quasi-static process, Work, Modes of work, Zeroth law, Concept of temperature and heat, First law, Application to closed and open systems, Internal energy, Enthalpy, Specific heat capacities (Cp & Cv), Steady flow process with reference to various engineering devices.

UNIT II – SECOND LAW, ENTROPY AND ENERGY                                              

Second law – Kelvin Planck and Clausius statements, Heat engine, Refrigerator and Heat pump, Efficiency and COP, Thermodynamic temperature scale, Reversibility and Irreversibility, Carnot cycle, Clausius Inequality, Concept of entropy, Entropy of ideal gases, Principle of increase of entropy, Quality of energy, Energy (Availability), Reversible work, Energy and Irreversibility for closed system and control volume, Second law efficiency.


Properties of ideal and real gases, Avagadros hypothesis and gas laws, Vander Walls and other equations of state, Principle of corresponding states, Compressibility factor, Generalized compressibility charts. Non reactive ideal gas mixtures, Mass and Mole fractions, Dalton’s law of additive pressures, Amagat’s law of additive volumes, Properties of ideal gas mixtures.


Partial derivatives and associated relations, Differential relations for U, H, G and A, Maxwell’s relations, Causius Clapeyron equation, Joule Thomson coefficient, Air and Gas tables.

UNIT V – PROPERTIES OF PURE SUBSTANCES                                           

Thermodynamic properties of pure substances in solid, liquid and vapour phases, P-V, P-T, T-V, T-S and H-S diagrams, PVT surfaces, Thermodynamic properties of steam, Use of steam tables and Mollier chart, Calculation of work done and heat transfer in non-flow and flow processes.



  1. Engineering Thermodynamics by P.K. Nag.
  2. Yunus, N. J., Cengel, A., and Michael Boles, A., Thermodynamics – An Engineering Approach.
  3. Basic Engineering Thermodynamics by Vijayaragavan.



  1. Yadav R., “Thermodynamics and Heat Engines”, Vol 1, Central Publishing House (1995)
  2. Jones J.B and Dugan R.E., “Engineering Thermodynamics”, Prentice Hall of India (1998)
  3. Roy Choudry T., “Basic Engineering Thermodynamics”, Second Edition, Tata McGraw Hill (2000)




In the below links you will find all the necessary notes required for the above syllabus: Download them for free

Unit I – Basics concepts & First law

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Unit II – Second Law, Entropy & Energy

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Unit III – Ideal & Real Gases & Non-Reactive Ideal Gas Mixtures

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Unit IV – General Thermodynamic Property Relations

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Unit V – Properties of Pure Substances

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