The density of water which is the inverse of the molevolume, so the density, the molar density, is equal to one over the molar volume.
水的密度,是摩尔体积的倒数，所以密度，摩尔密度，等于一除以摩尔体积。
2
So we're going to start with a mole of gas, V at some pressure, some volume, T temperature and some mole so V, doing it per mole, and we're going to do two paths here.