basic concepts in thermodynamics p m v subbarao professor mechanical engineering department i i t...
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Basic Concepts in Thermodynamics
P M V SubbaraoProfessor
Mechanical Engineering Department
I I T Delhi
Thorough Familiarization of Simple Premises…..
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Heart as a Thermodynamics System
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Operation of Left Ventricle
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Cyclic Operation of Heart
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Cyclic Operation of deceased Heart
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LPG Stove
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Schematic Diagram of LPG Stove
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Electric Stove
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Identification of Properties
• (a) Colour of a filament;
• (b) Age of a vehicle tire;
• (c) Life of a bulb ;
• (d) Specific heat of a solid;
• (e) Pressure;
• (f) Temperature;
• (g) heat;
• (h) Calorific value of a fuel.
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Colour is due to Incandescence
Incandescence is the emission of light (visible electromagnetic radiation) from a hot body as a result of its temperature.
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Spectral Analysis of Incandescent Filament
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Age of A Vehicle Tyre
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Made as Property
In the example above:DOT EJ8J DFM 408
DOT EJ8J DFM 408Manufactured during the 40th week of the year
DOT EJ8J DFM 408Manufactured during the 8th year of the decade
Tires Manufactured Before 2000
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Made as Property
In the example above:DOT U2LL LMLR 5107DOT U2LL LMLR 5107 Manufactured during the 51st
week of the yearDOT U2LL LMLR 5107 Manufactured during 2007
Tires Manufactured Since 2000
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Specific Heat : Is it a Property ? Or ……
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