Constants and Critical Values of IAPWS-IF97 (IAPWS 2007) Quantity Symbol Value Universal molar gas constant
If functions or routines that use these curve-fit equations include either (1) the gas constant
for dry air, (2) the molar mass of dry air, or (3) a ratio based on [M.
5) To correctly account for correlated uncertainty components between the universal gas constant
and the discharge coefficient of the HP CFVs, the sensitivity coeffiecient for the universal gas constant
is taken to be equal to [square root of 3/2] instead of 1/2--the value that would normally be expected.
c] 2 where p is density, R the universal gas constant
and T, temperature Kelvin.
i], [lambda] and D denote the adiabatic exponent, specific gas constant
, pipe friction coefficient and diameter.
g] is the universal gas constant
, and T is the temperature of the system (assumed constant).
where Z is the compressibility factor, M is the molecular weight, and R is the universal gas constant
Here, p denotes pressure, v the molar volume, T the absolute temperature, and R the universal gas constant
0] is a temperature independent preexponential factor, [delta]E is an activation energy, R is the gas constant
, and T is the absolute temperature.
a] is the activation energy, kJ/mole, and R is the universal gas constant
0] is the standard electrode potential; R is the universal gas constant
(8314 J/ (kmol.
f] are the mass of the solute cylinder before and after the filling, M is the molar mass of the gas, R is the gas constant
, Z is the compressibility factor of the gas, and [m.