PADI Divemaster Certification Practice Exam

Question: 1 / 480

What is the relationship between changes in absolute pressure and gas volume?

They are inversely proportional

The relationship between changes in absolute pressure and gas volume is described by Boyle's Law, which states that at a constant temperature, the volume of a given amount of gas is inversely proportional to its absolute pressure. This means that when the pressure of a gas increases, its volume decreases, and vice versa, provided the temperature remains constant.

In practical terms, if a diver descends in water, the pressure around them increases and the volume of any gas in a body (like their lungs) decreases. This relationship is fundamental for divers to understand in order to manage buoyancy and prevent barotrauma during descents and ascents. Hence, noting that the correct answer was stated as having the same relationship is inaccurate, since they are indeed inversely proportional according to Boyle’s Law. Understanding this concept is crucial for safe diving practices.

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They have no relation

They are the same

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