It is the second-smallest county by total area in Maryland. Notable waterways include the Choptank River and Tuckahoe Creek, as well as the man-made Williston Lake. Caroline County currently ranks seventh nationally in terms of land protected under the Ag Preservation Program.
Dry air contains roughly (by volume): All the above are relatively small, light, non-polar molecules, characteristics mimicking an ideal gas. At normal ambient conditions such as standard temperature and pressure, most real gases behave qualitatively like an ideal gas.
Once this pressure has been determined, the ideal-gas law can be used to calculate the amount of N 2 that must be generated to fill the airbag to this pressure. The amount of NaN 3 in the gas generator is then carefully chosen to generate this exact amount of N 2 gas.