Question

In the ideal gas law, what does the "R" stand for?

Answer 1

Explanation:

universal gas constant

The ideal gas law is: pV = nRT, where n is the number of moles, and R is universal gas constant.

Answer 2

Answer:

In the ideal gas law, "R" stand for Regnault.

Explanation:

The units of the universal gas constant R is derived from equation PV=nRT. It stands for Regnault.

If the pressure P is in atmospheres (atm), the volume V is in liters (L),

the moles n is in moles (mol),

and temperature T is in Kelvin (K),

then R is in L⋅atm/mol⋅K.R has the value 0.082057L⋅atm/mol⋅K with the above units for the remaining variables.

In other scenarios with pressures of bars instead, you may also use 0.083145L⋅bar/mol⋅K. However, the temperature must always be in Kelvin (K), as R uses units of K.

There is a variation of the ideal gas law that uses the density of the gas with the equation

PM=DRT

where M is the molar mass in g/mol and D is the density of the gas in g/L.