# SCUBA Project

## Boyle's Law

If volume increases, then pressure decreases. If volume decreases, then pressure will increase. Must stay at same temperature.

## Charles's Law

Gases tend to expand when heated.

## Dalton's Law

When in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of the individual gases.

## Gay-Lussac's Law

If temperature is increased, pressure is increased. If temperature is decreased, pressure is decreased.

## Henry's Law

The amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.

## The Bends

You can get The Bends when SCUBA diving in the ocean when exposed to gases like nitrogen.

The dangers of getting The Bends would be Certain heart defects, Cold water, Dehydration, Flying after diving, Exertion Fatigue, Increasing pressure (that is, the depth of the dive), Length of time spent in a pressurized environment, Obesity, Older age, Rapid ascent.

Some side effects of The Bends would be, fatigue and pain in muscles and joints, stroke, difficulty breathing, and chest pain.

The treatment for The Bends is oxygen and recompression therapy.

The laws that relate to The Bends would be Henry's Law because it deals with gas absorbed into a liquid, nitrogen getting absorbed into your blood. And its also Boyle's law because it deals with the pressure and volume of a gas container.

Rescue 911: Scuba Diver vs. "The Bends"

## Air Embolisms

You can get Air Embolisms when and air bubble enters a vein or an artery.

The dangers of Air Embolisms very with what blood vessel or artery is effected. The arteries to the brain can cause immediate loss of consciousness and may lead to seizures or a stroke. If the coronary arteries are effected then it may cause a heart attack or an abnormal heart rhythm. And if a blood vessel is effected then the lungs may cause a pulmonary embolism.

Side effects to Air Embolisms would be confusion, dizziness, slurred speech, blue skin, and low blood pressure.

You can treat Air Embolisms there are 3 steps, stop source of air embolism, prevent air embolism from damaging your body, and to resuscitate you if necessary.

The law that effects the Air Embolisms is Boyle's law because it states that pressure has an indirect relationship with volume, so, as a scuba diver is surfacing if done too fast the air in the lungs can expand too fast, damaging the alveolar.

## Oxygen Toxicity

You can get Oxygen Toxicity being exposed to oxygen at high pressures, which when SCUBA diving, diving past recreational depth limits.

The dangers of Oxygen Toxicity is when you're exposed to oxygen at high pressure.

The side effects of Oxygen Toxicity is irritation in the throat, a mild cough develops. If the person is still exposed to oxygen then they will notice chest tightness, difficulty breathing, shortness of breath.

The long term damaging of Oxygen Toxicity would be death because of lack of oxygen.

There is no treatment for Oxygen Toxicity.

The law that is involved with Oxygen Toxicity is Dalton's because it gives rise to Decompression sickness and nitrogen narcosis.