1. The problem statement, all variables and given/known data An ideal gas is in a container at temperture 300 degrees. What fraction of its moelcules will have speeds in the range 1.95v and 2.05v where v is the most probable molecular speed? Assume dN is constant in the range around 2v 2. Relevant equations Maxwell velocity distribution (MVD) 3. The attempt at a solution The answer should be in the form of dN/N dN/(.1v)=MVD so dN can be worked out. But how do you work out N?