Ideal Gas Law

  • Q: How can pressure change?

  • Air can approximately be regarded as an "ideal gas"

  • ideal gases obey the "ideal gas law":

    • P = CrT

      • P = pressure exerted by the gas

      • C = constant

      • r = density of the gas = mass/volume

      • T = Temperature of the gas

  • Q: So, from the ideal gas law, what can affect the pressure of a gas?