Q. 8.9
Question
Why do scuba divers need to exhale air when they ascend to the surface of the water?
Step-by-Step Solution
Verified Answer
Due to the decrease in pressure, scuba divers need to exhale air when they ascend to the surface of water. The principle behind this is Boyle's law.
1Step 1 : Given information
We are to find why do scuba divers need to exhale air .
2Step 2 : Simplify
According to Boyle's Law, the pressure is inversely related to volume, which means the volume increases with the decrease in pressure.
The pressure lowers as the diver ascends. This causes the lungs' volume to expand. The diver must exhale to compensate for the volume shift brought on by the pressure change; otherwise, the expanding air will lead him to lose control of his buoyancy (The tendency to float when submerged in water/any liquid).
Other exercises in this chapter
Q. 8.24
Use the words inspiration and expiration to describe the part of the breathing cycle that occurs as a result of each of the following:a. The diaphragm relaxes,
View solution Q. 8.14
A gas at a pressure of 2.0 atm is in a closed container. Indicate the changes (increases, decreases, does not change) in its volume when the pressure undergoes
View solution Q. 8.10
Why does a sealed bag of chips expand when you take it to a higher altitude?
View solution Q. 8.13
A gas with a volume of 4.0 L is in a closed container. Indicate the changes (increases, decreases, does not change) in pressure when the volume undergoes the fo
View solution