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# Gas Law Applications: Submarines

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## Kaley Holland

on 12 September 2014

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#### Transcript of Gas Law Applications: Submarines

states that the volume occupied by a gas at constant pressure is directly proportional to the absolute temperature.
Gay-Lussac's Law
Charles's Law
Boyle's Law
states that for a fixed amount of gas at a constant temperature, the volume of the gas increases as the pressure of the gas decreases, and the volume of the gas decreases as the pressure increases.
How Submarines Relate to Chemistry:

Oxygen generators are used in submarines. It is a device that releases oxygen by a chemical reaction. There are often compact devices that are used for emergencies.
Boyle's Law
Charles's Law
Gay-Lussac's Law
Four Gas Laws:
The deeper you go into the water, the more pressure will be pushing on all the surface area of the submarine. Another thing to think about is the volume of the air; it will decrease the deeper you dive. But the thick steel body of the submarine is stopping the outside pressure from condensing the air inside the submarine.
Application:
When a submarine goes deeper in the ocean, it gets colder and the pressure decreases. This works together with Charles's Law.
Application:
Gas Law Applications: Submarines
states that with a fixed amount of gas at a constant pressure, the volume of the gas increases as the temperature of the gas decreases.
Application:
As the submarine dives into the water the temperature will decrease; therefore, because the temperature is directly proportional to the volume, the volume of air inside the submarine will decrease.
states that equal volumes of gases at the same temperature & pressure contain equal numbers of of molecules
Application:
There is only a limited amount of fresh air in a substance and they must monitor the amount of fresh air; otherwise, the effects would be deadly.
How these laws relate to our every-day life:

Boyle's Law:
Pushing in the plunger of a plugged-up syringe decreases the volume of air trapped under the plunger.

Charles's Law:
A football inflated inside and then taken outdoors on a winter day shrinks slightly.

A balloon filled with helium weighs much less than an identical balloon filled with air.

Gay-Lussac's Law:
Car tires explode more during hot summer months because the pressure of the gas inside the tire increases with increasing temperature.

Examples:
Resources:
http://www.tandfonline.com/doi/abs/

www.onr.navy.mil

www.engineeraustrailia.org.au

www.sciencedirect.com
Kaley Holland
Full transcript