And we can't use this law to solve any form of problem. Now, let's see why this happens and let's see what breaks down. So suppose we have this system in which we have nine molecules and this system is under constant temperature but our pressure is one ATM. Now, suppose we go from this system to a much smaller system. So we decrease volume and we increase pressure but our temperature remains constant. So let's go back to this system, this system which was at standard temperature and pressure, these two values our distance between any two molecules was much larger than the distance or the size of the actual molecule itself.