Question

In exactly, one minute, how much father {on average) does hydrogen diffuse in the air than oxygen? Hydrogen H2 -> 6.4 x 10^-6 Oxygen in Air 1.8 x 10^-5 Do I subtract the Xrms of Hydrogen from Oxygen?

Xrms= (2Dt)^1/2

Xrms hydrogen= 0.0876 m

Xrms oxygen in air= 0.0464m

0.0876m - 0.0464m= 0.0412m or 4.12 cm

Answer 1

We know the root mean square distance is given by , where is the diffusion coefficient of the gas in air.

For , and for , .

So in one minute,i.e., ,

So, hydrogen diffuses farther than oxygen by: