97] is the specific gas constant
of IAPWS-IF97 (IAPWS 2007) given in Table 3.
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.
Davis, Measurement of the Universal Gas Constant
R Using a Spherical Acoustic Resonator, J.
where R is the gas constant
, T is the column temperature, M1 is the molecular mass of the probe, P1 is the saturated vapor pressure of the probe at temperature T, and B11 is the second virial coefficient of the probe in the gaseous state and can be determine from Equation 15.
i], [lambda] and D denote the adiabatic exponent, specific gas constant
, pipe friction coefficient and diameter.
GAS] is the gas constant
, and T is the absolute temperature.
where Z is the compressibility factor, M is the molecular weight, and R is the universal gas constant
g] is the universal gas constant
, and T is the temperature of the system (assumed constant).
Here, p denotes pressure, v the molar volume, T the absolute temperature, and R the universal gas constant
a] is the activation energy, kJ/mole, and R is the universal gas constant
The Svante Arrhenius theory gave quantitative basis for the relationship between the activation energy, temperature and reaction rate constant and the final form of the equation can take a linear form and can be expressed as follows: equationIntegration of Equation 10 yields:Where Ea is the activation energy (kcal/mol), k is theaverage overall reaction rate constant, A is anArrhenius constant, R is the universal ideal gas constant
0] is the standard electrode potential; R is the universal gas constant
(8314 J/ (kmol.