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HELIUM & NITROGEN FILLED BALLOONS (3 of 5)<br />
The Two Balloons After 20 Hours<br />
The helium filled balloon is smaller than the nitrogen filled balloon. Helium effuses out of the balloon faster than nitrogen.  Light atoms or molecules effuse through the pores of the balloons faster than heavy atoms or molecules.

Fphoto-33169304C-2RM.jpg

HELIUM & NITROGEN FILLED BALLOONS (3 of 5)
The Two Balloons After 20 Hours
The helium filled balloon is smaller than the nitrogen filled balloon. Helium effuses out of the balloon faster than nitrogen. Light atoms or molecules effuse through the pores of the balloons faster than heavy atoms or molecules.

Copyright:© 1993 Richard Megna - Fundamental Photographs

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Richard Megna