[SOLVED] conservation of energy 1. The problem statement, all variables and given/known data From what height must an oxygen molecule fall in a vacuum so that its kinetic energy at the bottom equals the average energy of an oxygen molecule at 200 K? 2. Relevant equations conservation of energy Eavg=3/2KbT Epot=mgh 3. The attempt at a solution I used conservation of energy and set Epot.=Eavg. and got 7855.8 m. But it is wrong.