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Regulation: R23 Branch: Mechanical Engineering Semester: 2-1 Code: 23ME03

Thermodynamics

Verified vs. official syllabus Checked 2026-07-01
Both the subject list and detailed unit topics are sourced from an autonomous JNTUK-affiliated college's published syllabus and have not been independently cross-confirmed against JNTUK's own exam records -- autonomous colleges may adapt content locally.
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Unit-wise syllabus

UNIT 01
Basic Concepts & Zeroth Law
System, boundary, surroundings, types of systems, macroscopic and microscopic viewpoints, control mass and volume, continuum; Properties, state, process (reversible and irreversible), cycle, quasi-static process, thermodynamic equilibrium; Path and point functions, specific heat, internal energy, enthalpy; Zeroth law of thermodynamics, measurement of temperature, constant volume gas thermometer
UNIT 02
First Law of Thermodynamics
First law for a closed system undergoing change of state and a cycle; p-v representation; forms of stored energy; Mechanical and non-mechanical work transfer; pdV and other work transfer; Open system: control volume, flow work, steady flow energy equation (SFEE); Steady flow devices (nozzles, diffusers, turbine, compressors, throttling valves, heat exchangers); limitations of the first law; PMM-I
UNIT 03
Second Law of Thermodynamics & Entropy
Energy reservoirs, heat engine, refrigerator, heat pump; Kelvin-Planck and Clausius statements and their equivalence; PMM-II; Carnot cycle, Carnot theorem and corollary; Entropy, principle of entropy increase, T-s plot, Clausius inequality, entropy changes for ideal gases; Availability and irreversibility, Maxwell relations, third law of thermodynamics
UNIT 04
Ideal Gas Mixtures & Pure Substances
Equation of state, Avogadro's law, ideal/perfect/real gas; Dalton's and Amagat's laws; Internal energy, enthalpy, specific heats and entropy of gas mixtures; Pure substance: phases, p-v, p-T, T-s and h-s diagrams, p-v-T surface; Properties of steam, dryness fraction, phase change processes, Mollier chart
UNIT 05
Thermodynamic Cycles
Carnot vapour cycle; simple Rankine cycle and problems; Gas power cycles: Otto, Diesel, Dual and Brayton cycles; Refrigeration cycles: reversed Carnot and Bell-Coleman cycles; Working of the vapour compression refrigeration cycle
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