Now, Boils Law works under certain conditions. Now, if we have a constant temperature and constant number of moles or N constant number of molecules, then we can use something called Boils Law. And what Boils Law relates is it relates volume and pressure. And what it states is that volume is directly proportional to the inverse of one over P. Or said another way, volume is inversely proportional to one over P. And we can represent this as VP equals constant. In other words, if we rearrange this and multiply this by some constant, we get this formula. And what this basically says is that under these conditions of constant temperature and constant number of moles, v times p will always be a constant.