How solubility of a gas in liquid varies with i) Temperature ii) pressure?

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Solution

i) The solubility of a gas in liquid decreases with respect to increase in temperature. With increase in temperature, the volume of dissolved gas increases. Solvent cannot accommodate gaseous solute. The gas bubbles out.
ii) On increasing pressure, the solubility of a gas in liquid increases. The effect of change of pressure on the solubility of gases is given by Henry's law according to which solubility $\propto$ pressure.

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