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The number of moles is a fourth variable that can be added to the three previous variables of temperature, pressure, and volume as a way to describe a gas sample. The Ideal Gas Law : PV = nRT describes the physical behavior of an ideal gas in terms of the pressure, volume, temperature, and number of moles of gas present. "R" is a constant that is dependent on the units used for pressure and will be provided. This quiz covers problems using the Ideal Gas Law. Select the best answer to the choices.
