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Name three ways the volume occupied by a sample of gas can be decreased.

Sagot :

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Answer & Explanation:

  • If the pressure and amount of gas are held constant, Charles' Law describes the relationship between volume and temperature: 1) As the Kelvin temperature of a gas rises, so does the volume of the gas. (P Constant, n Constant).  2) As the Kelvin temperature of a gas decreases, so does its volume. (P Constant, n Constant)

This means that a gas's volume is proportional to its Kelvin temperature. Consider this: if you increase the volume of gas while maintaining the pressure constant, the only way to do so is for the gas's temperature to rise.

  • Boyle's Law states that when the temperature and mass are both constant, the volume of a given amount of gas held at constant temperature varies inversely with the applied pressure. If the volume of the gas decreases, the molecules strike the walls more frequently, increasing the pressure; conversely, if the volume increases, the distance the molecules must travel to strike the walls increases, and they strike the walls less frequently, decreasing the pressure.

  • When pressure and temperature are held constant, Avagadro's Law gives the relationship between volume and amount of gas in moles. The volume of a container increases as the amount of gas in it increases. The volume of a container decreases as the amount of gas in it decreases. This is, of course, assuming that the container's walls are expandable.
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