Question

At rest, the average person breathes 0.5 liters (0.017 ft3) approximately 12-20 per minute. If you were to breath 0.5 liters per breath at a rate of 20 breaths per minute, calculate how long a completely full 80 ft3 scuba tank would last at the following depths – 10 m, 20 m, 30 m, 40 m. Technical divers can also breath mixed gasses to depths below 100 m. Using the same breathing volume and rate, calculate how long it would take a technical diver to breath 80 ft3 of gas at a depth of 100 m.

Answer 1