# Question: How is Boyle’s law used in scuba diving?

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## How does a scuba diver use Boyle’s Law?

Boyle’s Law is also important to divers because it means that if a diver takes a lung- ful of air while he is underwater, that air will expand in his lungs as he rises to the surface. If he holds his breath, or ascends too rapidly (like a cork) the expanding air can rupture his lungs.

## Which gas law is used in scuba diving?

In SCUBA diving, Gay-Lussac’s law (sometimes referred to as Amontons’ law of pressure-temperature) is most important in relation to the amount of breathable air in a tank. The pressure of an “empty” tank is low (around 500 psi), and the temperature is equal to the ambient temperature.

## Why does scuba divers need to know about gas laws?

This scuba diving gas law is very important for us as divers as it allows us to determine when a certain component’s partial pressure will reach a threshold. From your Open Water Diver course, you remember the increasing toxicity of breathing gases, namely oxygen and nitrogen.

## Which of the following explains the Boyle’s law?

This empirical relation, formulated by the physicist Robert Boyle in 1662, states that the pressure (p) of a given quantity of gas varies inversely with its volume (v) at constant temperature; i.e., in equation form, pv = k, a constant. …

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## What is the difference between Henry’s Law and Boyle’s law?

Boyle’s Law focuses on the relationship between the pressure exerted on a gas and the volume the gas exists within. … Henry’s Law, like Boyle’s Law, is a relationship between the variables of gas with its pressure. Henry focused on how the pressure exerted on a gas influences the solubility of the gas in solution.

## Why do lungs shrink underwater?

The lungs are among the few bodily organs that are influenced by pressure differences. … As external pressure on the lungs is increased in a breath-holding dive (in which the diver’s only source of air is that held in his lungs), the air inside the lungs is compressed, and the size of the lungs decreases.

## Why do deep sea divers use helium?

The main reason for adding helium to the breathing mix is to reduce the proportions of nitrogen and oxygen below those of air, to allow the gas mix to be breathed safely on deep dives. … A lower proportion of oxygen reduces the risk of oxygen toxicity on deep dives.