CHEM 101 Lecture 1: Lecture Notes
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Mw rms : root mean square ( tf kk) (cid:15482) units dont cancel if you use r= 0. 0821 latin monk. B when you use r= 8. 314m , terms = = and 3--11<9%2 we get mwmush beinkglme. Example : determine rms speed otagas : unit or- the velocity ! Mw= kglmol (cid:15482) terms = mls velocity of particle terms if } lighter gases arms jew at higher temp move faster ! terms = Kglmol (cid:15482) mw ar > mw oz > mw nz (cid:15482) terms are terms oz c terms nz terms nz= 98 = 515m15 terms nz= urn , ar (cid:15482) 515 = f t= 155 . Navy = mitla -1 us -1 - . Speeds of particles : used when the physical property depends on (ex : momentum) terms - Blackbody radiator used when physical property depends on u2 .
