All Materials regarding to B.tech R-20 in Mechanical Engineering in 1st Year 2nd Semester with unit wise for Every Subjects are available.
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| Mech 1-2 Thermodynamics | ||
|---|---|---|
| S.No | Chapters / Units | Download Link |
| 1 | Unit 1 | Download |
| 2 | Unit 2 | Download |
| 3 | Unit 3 | Download |
| 4 | Unit 4 | Download |
| 5 | Unit 5 | Download |
Mechanical 1-2 Previous Year question papers Download link
Mechanical 2-1 Thermodynamics Important Topics Questions
UNIT – I
Introduction: Basic Concepts : System, boundary, Surrounding, Universe, control volume,
Types of Systems, Macroscopic and Microscopic viewpoints, Concept of Continuum,
Thermodynamic Equilibrium, State, Property, Process - Reversible, Quasi static & Irreversible
Processes, cycle, Causes of Irreversibility. Energy in State and in Transition - Types, Work
and Heat, Point and Path function.
Zeroth Law of Thermodynamics – Concept of Temperature – Principles of Thermometry –
Reference Points – Const. Volume gas Thermometer – Scales of Temperature.
UNIT – II
Joule’s Experiments – First law of Thermodynamics – Corollaries – First law applied to a
Process – applied to a flow system –Energy balance for closed systems-Specific heats-
Internal energy, Enthalpy and Specific heats of Solids, liquids and Ideal gases, Some steady
flow energy equation applied to Nozzle, Turbine, Compressor and heat exchanger devices,
PMM-I.
UNIT III
Limitations of the First Law – Thermal Reservoir, Heat Engine, Heat pump, Parameters of
performance, Second Law of Thermodynamics, Kelvin-Planck and Clausius Statements and
their Equivalence, Corollaries, PMM of Second kind, Carnot cycle and its specialties,
Carnot’s theorem, Thermodynamic scale of Temperature.
Clausius Inequality, Entropy, Principle of Entropy Increase, Availability and Irreversibility
(Basic definitions) – Thermodynamic Potentials, Gibbs and Helmholtz Functions, Maxwell
Relations – Elementary Treatment of the Third Law of Thermodynamics.
UNIT IV
Pure Substances, P-V-T- surfaces, T-S and h-s diagrams, Mollier Charts, Phase
Transformations – Triple point and critical point, properties during change of phase, Dryness
Fraction – Clausius – Clapeyron Equation, Property tables. Various Thermodynamic
processes and energy Transfer – Steam Calorimetry.
UNIT – V
Ideal Gas equation of state- Compressibility factor- Van der Waals equation of state- Beattie-
Bridgeman equation of state- Benedict-Webb-Rubin equation of state- Viral equation of state-
compressibility charts – variable specific heats .
Mixtures of perfect Gases – Dalton’s Law of partial pressure, Avogadro’s Laws of additive
volumes- Equivalent Gas constant and Molecular Internal Energy, Enthalpy, Specific Heat
and Entropy of Mixture of Perfect Gases and Vapour.
Psychrometric Properties – Dry bulb Temperature, Wet Bulb Temperature, Dew point
Temperature, Thermodynamic Wet Bulb Temperature, Specific Humidity, Relative Humidity,
Saturated Air, Vapour pressure, Degree of saturation – Adiabatic Saturation , Carrier’s
Equation – Psychrometric chart.
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