The gas constant is 8.314 J/mol K into units of L atm.
The Boltzmann constant is expressed in units of energy per temperature increment per mole.The pressure–volume product is not the same as the energy per temperature increment per particle.The constant is a combination of the five constants.The ideal gas law, the Arrhenius equation, and the Nernst equation are some of the fundamental equations that feature a physical constant.
The gas constant relates the energy scale in physics to the temperature scale and the scale used for amount of substance.The value of the gas constant derives from historical decisions and accidents in the setting of units of energy, temperature and amount of substance.The Boltzmann constant and Avogadro constant are related to temperature and particle count.
The Avogadro constant NA is defined as the Boltzmann constant k.
Since the redefinition of SI base units, NA and k are defined with exact numerical values.The molar gas constant's SI value is exactly 8.31446261815324 JK1mol1.
The French chemist Henri Victor Regnault, whose accurate experimental data were used to calculate the early value of the constant, is thought to have inspired the idea of naming the symbol R the regnault constant in his honor.[3][4]
Where P is the absolute pressure, V is volume of gas, n is amount of gases, m is mass, and T is temperature.The mass-specific gas constant is called Rspecific.The same units are used to express the gas constant and heat capacity.
Work per mole is the physical significance of R.It can be expressed in any set of units that represent work or energy, units representing degrees of temperature on an absolute scale, and any system that creates a mole or a similar pure number.
The Boltzmann constant kB can be used in place of the molar gas constant by working in pure particle count.
The Avogadro constant is NA.The ideal gas law is the Boltzmann constant.
The local form holds: where N is the number of particles, or to generalize to an inhomogeneous system.
The most precise measurement of R was obtained by measuring the speed of sound ca(P, T) in argon at the temperature T of the triple point of water at different pressures P and extrapolating to the zero-pressure limit.The relation gives the value of R.
R now has an exact value defined in terms of other exactly defined physical constants after the redefinition of the SI base units.
The specific gas constant of a gas or a mixture of gases is given by the molar mass of the gas.
The Boltzmann constant can be related to the ideal gas constant by dividing it by the mass of the gas.
Another important relationship comes from the sciences.The specific gas constant is related to the specific heat capacities for a perfect gas.