So the same way we did for Boyle's Law, for Charles Law, we can rewrite this relation or this relation in the following manner. Now, suppose I have some system, some gas system and I have two sets of different conditions for this gas system. Well, I can relate them in the following manner. Assuming that these guys are both constant. In other words, note that the constant always stays the same when our pressure number of moles stays the same. That means if we have some conditions, v one and T one and a second condition of V two and T two.