Example 9.10: Using the Combined Gas Law

When filled with air, a typical scuba tank with a volume of 13.2 L has a pressure of 153 atm ( Figure 16). If the water temperature is 27 °C, how many liters of air will such a tank provide to a diver’s lungs at a depth of approximately 70 feet in the ocean where the pressure is 3.13 atm?
Figure 16:Scuba divers use compressed air to breathe while underwater. (credit: modification of work by Mark Goodchild)