Evaporation of Ether
 

Hi

I have a problem when I want to calculate the concentration of ether in a small room.

On the floor I got 50 ml of ether on the floor.

How can I calculate the averaged concentration in ppm in the room by hand (not conmputer)?

What be a best boundary condition for this kind of evaporation.

A flux on the small pool on the floor or a fixed scalar inlet of ehter?

Thanks a lot.

newbie