You are watching: What 3 factors affect gas pressure
Gas pressure in a closed container is the result of the gas molecules hitting the inside of the container. The molecule move about and are attempting come escape the container. Once they cannot escape, lock strike the inside wall surface and climate bounce around. The more molecules striking the inside wall surface of the container, the better the pressure. This concept represents the kinetic theory of gases.
Changing the temperature affects pressure in a close up door container. Raise the temperature, and the push increases. This occurs due to the boosted movement the the gas molecules. Twin the temperature, and also you double the pressure. This explains why aerosol cans have actually warnings around exposure come heat. Litter an aerosol have the right to into a fire and also it will explode at the allude when that is walls deserve to no longer withstand the increased pressure that its contents. 2 French scientists, Jacques Charles and Joseph luigi Gay-Lussac, first demonstrated this principle; the legislation explaining it bears their names.
The volume the a gas and also its push are inversely related. To decrease the volume, and also the press increases. This relationship is dubbed Boyle"s legislation in honor of Robert Boyle who first observed that increased pressure lowered volume. Together the volume a gas rectal decreases, the molecule of the gas are compelled closer together, however their movement continues. They have less distance to travel to influence the container wall surfaces so castle strike much more often, thus creating much more pressure. This aspect is the basis because that the car piston. That compacts the air-fuel mixture in the cylinder, thereby increasing pressure within the cylinder.
Increase the number of particles in a container, and the press of the system within the container increases. Much more molecules mean more hits against the container walls. Enhancing the number of particles way you have actually increased the density of the gas. This 3rd factor is component of the right gas law, which explains how this three determinants -- temperature, volume and also density -- interact with each other.
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Robert Alley has actually been a freelance writer due to the fact that 2008. He has actually covered a range of subjects, consisting of science and sports, for various websites. He has a Bachelor of arts in business economics from north Carolina State University and also a Juris physician from the university of southern Carolina.