A syringe of volume 20 ml has just been used and now lies empty on the
doctor's desk. The pressure in the office is
100,000 Pa. Assume that the air is an ideal gas consisting of nitrogen N2
(80%) and oxygen O2 (20%) molecules. k=1.38×10-23 J/K and the
molar mass of oxygen is 32 g/mol.
The syringe must be heated to high temperatures to sterilize it.
When the syringe is at its maximum temperature, the number
of oxygen molecules is 6.5 x 1019 (but the pressure, volume, and
percent oxygen remain the same), what is the rms speed
of the oxygen molecules?
vrms = m/s