Gas Law uses

[SKA]

HI! Can anyone tell me how the gas laws (of Boyle, Charles and all the others) are used and applied please ive got an essay to do on them and I dont know ANYTHING!!! Links will do!!!

Thanks

SKA

[mrbatfink]

Hope it helps

http://www.chemtutor.com/gases.htm

[jake-the-peg]

There are 3 main laws

Boyles law that says if temperature is constant the pressure of a gas is inversely proportional to volume

Charles' law that says if pressure is constant temperature is proportional to volume

Guy-Lussac's law that says if volume is constant pressure is proportional to temperature.

If you put these together you get the combined gas law

All of these assume an idealised or "ideal" gas - one where the particles take zero volume have no forces between them and have perfect collisions. There's no such thing but most gasses are a good approximation

From this you get the ideal gas law

PV=nRT which allows you to calculate volume pressure or temperature of a gas if you know the other values.

Wikipedia has a good page on it here:

http://en.wikipedia.org/wiki/Gas_laws