1. The problem statement, all variables and given/known data The distribution of the speed v of molecules, mass m, in a gas in thermal equilibrium at temperature T is given by: P(v)dv=Av2e-(0.5mv^2)/(kT)dv where k is the boltzmann constant and A is the normalising constant. Determine A such that [tex]\int[/tex] between 0 and [tex]\infty[/tex] P(v)dv=1 2. Relevant equations 3. The attempt at a solution Obviously the main problem is I don't think it's very easy to directly integrate this equation and so I assume there is some trick for why between those values you can see a value for A where that last relationship will hold. Just a point in the right direction would be helpful, thanks.