Hi I'm in high school but what I'm going to ask you is probably being teached in college. General formula: p=(2/3)*(N/V)*Ek p- pressure N- amount of molecules V- volume of the container Ek - AVERAGE kinetic energy I've been told by my physics teacher, that 2/3 constant factor in kinetic theory of gases is the result of using mathematical statistics. As there're lots of molecules moving all the time with high velocity and different directions, kinetic energy of each is different. Therefore we use AVERAGE kinetic energy of molecules. In order to calculate this average Ek we use mathematical statistics(which with I'm not acquired at all). All of this seems logical to me. Can you possibly tell me if all of this is correct ?