The air cell increases in size during incubation at a rate that depends on temperature and humidity as moisture evaporates from the egg. The drawing shows the normal size of an egg's air cell at 7, 14, and 18 days of incubation. Size of the air cell in the egg on the 7th, 14th, and 18th day of incubation.
A specific heat capacity is the amount of energy necessary to increase the temperature of a kilogram of that substance by one kelvin. Molar heat capacity is the amount of energy necessary to raise one mole of substance by one kelvin degree. One mole of a substance is exactly 6.02x10 23 atoms or molecules of that substance.
Approximately 66 ft. (10m depth (about 33 ft) = 1 atmosphere) 1 atmosphere at the surface. 2 Atms at 33 ft./10M. 3 Atms at 66ft/20M. 10Atms at 90M. 100 ATM at 990M.