The Mudcat Café TM
Thread #96401   Message #1885323
Posted By: Paul Burke
14-Nov-06 - 03:55 AM
Thread Name: BS: Nitrogen in your Car Tires? Bull Or Not
Subject: RE: BS: Nitrogen in your Car Tires? Bull Or Not
Not defending nitrogen in tyres, it's bull, but you can't calculate the molecule size from the atomic weight. Both nitrogen and oxygen molecules comsist of TWO atoms, and the molecule size will be almost entirely dictated by the length of the bond between them.

On that basis, nitrogen (and oxygen) will have larger molecules than any of the monatomic inert gases, but (probably) smaller than carbon dioxide.