R: Gas universal constant, which is equal to 8.31 JKelvin.mol or 0.082 Litre.atmKelvin.molor 10.732 psift3Rankine.mol.pound T: Temperature of the gas in Rankine (R) or Kelvin (K) The pressure, temperature, and volume of gas can be converted as follows: 1atmosphere=1.013×105Pascal=14.7...
In 1849 Williams Rankine fit his own equation to Regnault's data and came up with the following relation: log10 psat=A−B/Tsat−C/Tsat2where psat is in psia and Tsat = Tsat(in °F) + 461.2 (–461.2°F was Rankine's best estimate of absolute zero), and A=6.1007 log10...