The Combined Gas Law

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| Effects of Variations in Air Temperature on Air Pressure: The Combined Gas Law |

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Introduction The volume of gases, V, is affected by their temperature, T. As stated by Charles' Law, a sample of gas at a fixed pressure increases in volume linearly with temperature: (1) đ?‘‰âˆ?đ?‘‡ (2)

đ?‘‰ = đ?‘?đ?‘œđ?‘›đ?‘ đ?‘Ąđ?‘Žđ?‘›đ?‘Ą đ?‘‡

Charles' Law combined with Boyle’s Law can be expressed in one statement - The Combined Gas Law. This law states that the volume occupied by a given amount of gas is proportional to the absolute temperature divided by the pressure, P: (3)

đ?‘ƒđ?‘‰ = đ?‘?đ?‘œđ?‘›đ?‘ đ?‘Ąđ?‘Žđ?‘›đ?‘Ą đ?‘‡

In this experiment we investigate the relationship between pressure and temperature and their effect on gas behavior, by measuring the effect of warming a constant volume of air trapped in a sealed flask on

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