1. The problem statement, all variables and given/known data From the average separation between air molecules at STP, and their mean speed, estimate how long it would take one molecule to move into the region occupied by another. Assume that air consists mainly of nitrogen molecules. 2. Relevant equations v(rms)=sq root(3kT/m) molecular mass of nitrogen is 28u 3. The attempt at a solution Do i just ignore oxygen and just work on nitrogen molecules? I dont know how to find the average separation of air molecules at STP. the average speed of a nitrogen molecule works out to be: v=sq root([(3)(1.38x10^-23)(273)]/4.6x10^-26 v=462m/s what should i do next?