1 Gases consist of large numbers of molecules (or atoms, in the case of the noble gases) that are in continuous, random motion. 2  The volume of all the molecules of the gas is negligible compared to the total volume in which the gas is contained.  Attractive and repulsive forces between gas molecules is negligible.
Medical authorities say that Olympic sprint champion Florence Griffith Joyner died of suffocation month ago after suffering seizure while she slept; say seizure was caused by congenital abnormality of blood vessels in her brain (M)
He did not return phone calls seeking comment. Griffith Joyner died almost 10 years after winning the 100-meter gold medal, the first of three she won in the 1988 Olympics. She later won the 200 meters and was a member of the teams that won the 400-meter relay and came in second in the 1,600-meter relay.