The air reaches the tiny air sacs (alveoli) in the inner part of the lungs with any dust particles that avoided the defenses in the nose and airways. The air sacs are very important because through them, the body receives oxygen and releases carbon dioxide.
1 A full size keg holds about 15.5 gallons (165 12-oz cups) and is sometimes referred to as a 1/2 keg. 2  The full-size kegs typically start at about $100 for American draft beers. 3  Specialty beers, lagers and ales can cost from $125-$250.
Case Equivalent = 6.8 Cases 12 oz./can or bottle Servings= 165 16 oz./pint servings= 124 --------------------------------------... Other Dimensions of a Keg of Beer. Full Keg Weight = 160.5 Pounds Empty Keg Weight = 29.7 Pounds Beer Weight = 130.8 Pounds --------------------------------------...Source(s): lutzke35 Â· 7 years ago. Thumbs up. 0. Thumbs down. 0. 1 comment. Loading ...984 fluid ounces (U.S.) In European countries where the metric system is used, kegs come in 25 and 50 liters as a standard. In some areas it is common to refer to the size not in liters but in beers. In areas where the standard beer size is .5 liters i.e.: a 50 liter keg would be 100 beers.