Definition:Universal Gas Constant/Value

Universal Gas Constant: Value

The value of the universal gas constant is:

\(\ds R\)

\(\approx\)

\(\ds 8 \cdotp 31446 \, 26181 \, 5324\)

joule per degree kelvin per mole: $\mathrm {J \, K^{-1} \, mol^{-1} }$

\(\quad\) in SI units

\(\ds \)

\(\approx\)

\(\ds 8 \cdotp 31446 \, 26181 \, 5324\)

kilojoule per degree kelvin per kilogram-mole: $\mathrm {kJ \, kg \, mol^{-1} \, K^{-1} }$

\(\ds \)

\(\approx\)

\(\ds 8 \cdotp 31446 \, 26181 \, 5324 \times 10^7\)

erg per degree kelvin per mole: $\mathrm {erg \, K^{-1} \, mol^{-1} }$

\(\quad\) in CGS units

\(\ds \)

\(\approx\)

\(\ds 1545\)

foot-pound per degree Rankine per pound-mole: $\mathrm {ft \, lbf \, \rankine^{-1} \, lb \, mol^{-1} }$

\(\quad\) in FPS units

Sources

• 1964: Milton Abramowitz and Irene A. Stegun: Handbook of Mathematical Functions ... (previous) ... (next): $2$. Physical Constants and Conversion Factors: Table $2.3$ Adjusted Values of Constants

which gives the mantissa as $8 \cdotp 314 \, 34$, with an uncertainty of $\pm 35$ corresponding to the $2$ least significant figures

• 1969: J.C. Anderson, D.M. Hum, B.G. Neal and J.H. Whitelaw: Data and Formulae for Engineering Students (2nd ed.) ... (previous) ... (next): $3.$ Physical Constants