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.
The difference between an ideal gas and a real gas is that real gases will not strictly follow the laws established for ideal gases, because of real-world characteristics. An ideal gas can follow the formula PV=nRT. (P-pressure, V-volume, n-amount of moles, R-Avogrado constant, T-absolute temperature). A real gas does not always follow this formula. 1  An ideal gas is infinitely compressible, a real gas will condense to a liquid at some pressure. 2  The particles of an ideal gas lose no energy to its container. 3  A real gas conducts and radiates heat, thereby losing energy.