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A scuba tank, when fully charged, has a pressure of 195 atm at 20°C. The volume of the
Chapter 13, Problem 91GP(choose chapter or problem)
Problem 91GP
A scuba tank, when fully charged, has a pressure of 195 atm at 20°C. The volume of the tank is 11.3 L. (a) What would the volume of the air be at 1.00 atm and at the same temperature? (b) Before entering the water, a person consumes 2.0 L of air in each breath, and breathes 12 times a minute. At this rate, how long would the tank last? (c) At a depth of 20.0 m of sea water and temperature of 10°C, how long would the same tank last assuming the breathing rate does not change?
Questions & Answers
QUESTION:
Problem 91GP
A scuba tank, when fully charged, has a pressure of 195 atm at 20°C. The volume of the tank is 11.3 L. (a) What would the volume of the air be at 1.00 atm and at the same temperature? (b) Before entering the water, a person consumes 2.0 L of air in each breath, and breathes 12 times a minute. At this rate, how long would the tank last? (c) At a depth of 20.0 m of sea water and temperature of 10°C, how long would the same tank last assuming the breathing rate does not change?
ANSWER:
Solution 91 GP:
Step 1 of 3:-
a)
Here we have to find the volume at 1 atm pressure and the same temperature.
The scuba tank pressure was: .
The temperature was: .
The volume was:
If we put the condition of constant temperature, the ideal gas equation will be reduced to,
.
So, the volume will be: 2203.5 L.