# How does the behavior of gases affect a scuba diver underwater?

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## What happens to gases when people dive in deep waters?

Divers breathe compressed air that contains nitrogen. At higher pressure under water, the nitrogen gas goes into the body’s tissues. … Nitrogen narcosis: Deep dives can cause so much nitrogen to build up in the brain that you can become confused and act as though you’ve been drinking alcohol.

## 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 gas is used in underwater diving?

Deep sea divers normally breathe a mixture of nitrogen and oxygen, called nitrox or EAN (Enriched Air Nitrox).

## What are the 5 gas laws?

Gas Laws: Boyle’s Law, Charle’s Law, Gay-Lussac’s Law, Avogadro’s Law.

## How is Charles law used in scuba diving?

Charles’ Law is often used to explain why the pressure in a scuba tank goes up when the temperature increases. But Charles’ Law states that the volume of a gas is directly proportional to its temperature. The volume of a scuba tank is constant. … The pressure of a gas is directly proportional to its temperature.

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## Why can’t humans go deep underwater?

Since the water down at those depths is still liquid and not solid, there is not enough depth in our ocean to solidify water simply with pressure. Water remains a liquid at even 1101 bar or pressure. The human body would therefore not solidify under that pressure.

## How deep can a human go underwater with scuba gear?

With recreational diving, the answer to the question “how deep can you SCUBA dive?” is 130 feet. Proper certification is highly recommended for those depths of SCUBA diving. As a basic open water SCUBA diver, the limit for how deep can you dive is 60 feet.

## What gas law is applied in breathing?

We can breathe air in and out of our lungs because of Boyle’s law. According to Boyle’s law, if a given amount of gas has a constant temperature, increasing its volume decreases its pressure, and vice-versa.

## Should scuba tanks be filled with 100 oxygen?

On the surface, pure oxygen is recommended first aid for the majority of diving injuries. A recreational diver is likely to run across pure oxygen on a dive boat at some point in his diving career.

## Why must deep sea divers slowly swim to the surface?

A diver should ascend most slowly from his safety stop to the surface, even more slowly than 30 feet per a minute. Nitrogen in a diver’s body will expand most quickly during the final ascent, and allowing his body additional time to eliminate this nitrogen will further reduce the diver’s risk of decompression sickness.

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## Why can’t scuba divers breathe pure oxygen?

Divers breathing pure oxygen need to carry much smaller amounts of gas and produce no bubbles, but there are problems, some of which can be fatal. … The oxygen is consumed, carbon dioxide is removed, and nitrogen accumulates, gradually reducing the percentage of oxygen in the counterlung.