The solubility of a gas is directly proportional to the pressure and proportional to the temperature.
As we increase the pressure of a gas its collision frequency increases hence solubility increases as we decreases the pressure the solubility decreases. Collision frequency is defined as the collision of atoms on increasing pressure atoms start moving from one place to another. The relationship pressure is linear with solubility. It is defined by Henry's law.
The effect of temperature depends on the nature of solute and solvent.
Basically, as we increase the temperature in gas phase solubility also increases.
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