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Ideal Gas Project

A project of the gas laws including examples from real life.

Victoria Pham

on 30 November 2012

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Transcript of Ideal Gas Project

Ideal Gas Project Boyle's Law The ideal gas law relates volume, pressure, moles, and temperature. The formula is PV=nRt. Ideal Gas Law Boyle's law states the relationship between pressure and volume. This relationship is inversely proportional because as the pressure increases by two, the volume decrease by a half. Avogadro's Law This law states the relationship between volume and the number of moles. They are directly proportional in that as volume increases, the number of moles also increases. Charles' Law Charles' law states the relationship between temperature and volume in the formula Combined Gas Law The combined gas law is a summation of Charles' Law, Boyle's law, and Gay-Lussac's Law. It compares volume, pressure, and temperature in Example The ideal gas law is used in real life during the process of building safe air bags. Nitrogen is the element used to fill air bags and a certain pressure is needed to fill the airbags with nitrogen. Once a pressure is found, the ideal gas law is used to find the amount of moles of nitrogen needed to fill the airbags at the ideal pressure and temperature. This relationship is directly proportional seeing as the volume increases the same amount that the temperature increases. Example A display of Charles' law in real life is found in the rising of bread. The bread rises and therefore expands as the temperature rises. The hotter temperature causes the pockets of air within the bread to expand which increases the volume. Example An application of Boyle's law is the use of a syringe. When a syringe is inserted into a liquid and pulled back, the volume is increased so the pressure is low near the needle which causes the liquid to be pulled up. Example Avogrado's law explains the inflation of a balloon. As air is blown into it, the amount of molecules in the balloon increases therefore increasing the volume. Example This law applies to the function of a car's engine. When the accelerator is pushed, it releases gas and air into a cylinder which causes the piston to compress the gas and air, in other words the pressure. While the mixture is compressing, the temperature increases which also increases the volume to release the piston and release the exhaust gases. Gay-Lussac's Law Gay-Lussac's law shows the relationship between temperature and pressure. As temperature increases, so does pressure. Example The function of cannons is based on this idea. The temperature is heated which increases the pressure until the cannon is released. Example This is also shown when a container of food is heated. As the temperature rises, the pressure increases which causes the lid to be suctioned to the container. Example This also applies to breathing. The volume of your lungs expands when you inhale, because that is an increase in the amount of oxygen. The volume decreases, since there is a decrease in the amount of molecules.
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