- #1

grandpa2390

- 474

- 14

## Homework Statement

Calculating the rms speed of an N2 molecule. The units I end up with are J/kg and this is equivalent to Velocity. my question is why?

## Homework Equations

v = J / kg

KE = .5mv^2

## The Attempt at a Solution

I tried to derive it myself using the kinetic energy formula. What I end up with is that ##v=\sqrt{\frac{2*J}{kg}}##

The units are right, J/kg, but it isn't a direct conversion like the solution on Chegg says. it looks like to convert, my 517 J/kg doesn't equal 517 m/s. It would seem I would have to take the square root of 1034