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How does a gas change when it is compressed at constant temperature?
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When a gas is compressed at a constant temperature, its behavior is described by Boyle’s law. This law states that the pressure of a given quantity of gas is inversely proportional to its volume.
In practical terms, this means that if you decrease the volume of a gas by compressing it, the pressure exerted by the gas increases proportionally. For example, if the volume of the gas is reduced by half, the pressure will double, provided the temperature remains constant. While this relationship is exact for an ideal gas, real gases follow this law closely at low pressures, though they may show slight deviations as pressure increases.123