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Heat and Thermodynamics by Anandamoy Manna

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5.1 Equation of State of Perfect Gas

A perfect gas (or ideal gas) can be defined as a gaseous mass which obeys the following relation

 

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where p is the pressure (in dynes per square centimetre) exerted by a given mass of the gas occupying a volume v at absolute temperature T. R is a constant which depends on the mass of the gas and is independent of its pressure, volume and temperature. The mathematical relation connecting the three thermodynamic parameters p, v, and T of a substance is called its equation of state. The state of the gas represented by Eq. 5.1 holds approximately for the so-called permanent gases which cannot be liquefied under ...

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