SCUBA Project

Abby Hunt

Boyle's Law

The volume changes inversely with the pressure.

Charle's Law

The volume is directly related with the temperature when there is no
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Gay-Lussac's Law

Relatively low pressures, the density of an ideal gas at constant pressure varies inversely with absolute temperature.

Dalton's Law

The behavior of a gas mixture behaves in exactly the same way as a pure gas

Henry's Law

At a constant temperature, 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.
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The Bends

Cause: As you you swim to the surface nitrogen is dissolved into your blood. If you go to quickly it separates out of your blood and forms bubbles in your blood.

Side Effects: fatigue and numbness

Long Term: Joint pain

Treatment: Use of a hyperbolic oxygen chamber

Gas laws involved: Henry's law... solubility of the gas is directly linked to pressure.

Air Embolisms

Cause: Nitrogen dissolved in the blood and tissues by high pressure forms bubbles as pressure decreases.

Side Effects: Fatigue, Joint pain, numbness, and shortness of breath

Long Term: Heart defects, dehydration, and obesity

Treatment: Decompression therapy, 80% of people recover completely

Gas laws involved: Boyle's Law... When pressure decreases the gas expands.

Oxygen Toxicity

Cause: Exposure to oxygen at high pressure.

Side Effects: Starts with irritation in the throat, a mild cough develops. If the person is still exposed to oxygen then they with notice chest tightness, difficulty breathing, shortness of breath.

Long Term: If the exposure is continued long enough then the person will die from lack of oxygen.

Treatment: N/A

Gas laws involved: Boyle's law... As the pressure increases the volume decreases

https://youtu.be/z7Hi0HO24Vk

Sources

Notes

"Gas Laws." : Dalton's Law. N.p., n.d. Web. 05 Apr. 2016.

"Oxygen Toxicity - Signs and Symptoms | Dive Rite." Dive Rite. N.p., 11 Jan. 2016. Web. 05 Apr. 2016.

http://www.merckmanuals.com/home/injuries-and-poisoning/diving-and-compressed-air-injuries/decompression-sickness

http://www.drugs.com/health-guide/decompression-sickness.html