EXERCISE 15


At the surface of Mars, the atmospheric pressure is 0.007 Earth atmosphere, and
the typical daytime equatorial temperature is about 250 K (a cold winter day in
Alaska). If you gather 22.4 liters of Martian atmosphere at its surface during
daylight at the equator, about how many gas molecules will you collect?  

Remember that to use the ideal gas law, temperatures should be in degrees Kelvin.