Values of R(Universal Gas Constant Values)

          Values of R (Gas Constant) Value Units (V.P.T −1 .n−1 )

Physics and Chemistry starts at some common nodes.
These are some universal constants.
This blog is dedicated to particularly Universal Gas constant.

8.314 4621(75) J K−1 mol−1 (Mostly used value of R)

0.082 057 46(14) L atm K−1 mol−1 (Second most used value of  R)

8.314 4621(75) × 107 erg K−1 mol−1

8.314 4621(75) L kPa K−1 mol−1

8.314 4621(75) m3 Pa K−1 mol−1

8.314 4621(75) cm3 MPa K−1 mol−1

8.314 4621(75) × 10−5 m3 bar K−1 mol−1

8.205 746 × 10−5 m3 atm K−1 mol−1

5.189 × 1019 eV K−1 mol−1

1.985 8775(34) cal K−1 mol−1

1.985 8775(34) × 10−3 kcal K−1 mol−1

82.057 46 cm3 atm K−1 mol−1

84.784 02 × 10−6 m3 kgf/cm2 K−1 mol−1

8.314 4621(75) × 10−2 L bar K−1 mol−1

62.363 67(11) L mmHg K−1 mol−1

62.363 67(11) L Torr K−1 mol−1

6.132 440(10) ft lbf K−1 g-mol−1

1,545.348 96(3) ft lbf °R−1 lb-mol−1

10.731 59(2) ft3 psi °R−1 lb-mol−1

0.730 2413(12) ft3 atm °R−1 lb-mol−1

1.314 43 ft3 atm K−1 lb-mol−1

998.9701(17) ft3 mmHg K−1 lb-mol−1

1.986 Btu lb-mol−1 °R−1

The pressure, volume, amount of substance, and temperature of a gas are related according to the following equation, known as the universal gas equation

                                                     PV = NRT

The Units are the crucial here

Standard temperature 273 K and pressure 1 atm or 101325 N/m² and one mole (n = 1) of gas occupies 22.4 L volume. Using this experimental value, we can evaluate the gas constant R

P = n R T / V,   (Boyle's law)
P = (n R / V) T   (Charles' law) 

The ideal gas law has four parameters and a constant, R and these can be rearranged to give an expression for each of P, V, n or T