## Boyles Law and Combined Gas Law

I am doing a bit of self study and background reading and was wondering if anyone could explain what the Constant is in Boyles Law and in the constant in the Combined Gas Law? Following on from that, what is the significance of the Constant? Does air have a particular constant for Boyles Law and and particular constant for the Combined Gas Law?

Any help would be much appreciated.

Matt
 In the Boyle's law part of the question... Boyle's law is just pV = constant. Are you referring to that constant? It just says that: For a fixed amount of an ideal gas kept at a fixed temperature, P [pressure] and V [volume] are inversely proportional (while one doubles, the other halves). For the combined gas law, the ideal gas constant, R (or the Boltzmann's constant, k) are just that, constants. This constant is different from the constant in Boyle's law, since this one can give you more information. In this case, pV = nRT = NkT. And R = k times Avogadro's number (number of particles in one mole of particle) You can actually learn about all these just from wikipedia.

 Tags boyle, boyle's law, combined gas law, gas
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