Molar gas constant
= Molar gas constant
{title2=$R=N_Ak_B$}
The molar gas constant is the product of the <Avogadro constant> and the <Boltzmann constant>. It converts the particle-number form of the <ideal gas law>, $pV=Nk_BT$, into the amount-of-substance form $pV=nRT$, using $N=nN_A$ with $n$ measured in <moles>.