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Unformatted text preview: g =P abs-P atm Atmospheric pressure: P atm Vacuum pressure, P v =P atm-P abs Perfect vacuum: P abs =0 Perfect gas law: PV=nR T A V: volume of gas (m 3 ) P: absolute pressure (Pa) n: amount of substance of gas (in moles) R : universal gas constant (8.314 J.K-1 .mol-1 ) T A : absolute temperature (K) Enthalpy: H=E i +PV H: enthalpy (J), E i : internal energy (J), P: pressure (Pa), V: volume (m 3 ) Relative value...
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- Fall '11