The temp is at 500k and the boltzmann constant is obviously a constant value but I'm not sure what the m is, is it the molar mass in kg (if so I get a ridiculously small value for the speed) or is it the mass of one particle of N2 so 28 x10^-3 x (avogadro's constant) ??? But then I get a really big value which seems too large to be true
EDIT: Also have a question about calculating the rms speed of free electrons in the sun's atmosphere. Though it gives me a value for the pressure so can I not just use the Vrms equation = sqrt(3KbT/m)???