Answer 1

Effect of temperature on solubility of a gas in a liquid:
1. According to Charles’ law, volume of a given mass of a gas increases with increase in temperature.

2. Therefore, volume of a given mass of dissolved gas in solution also increases with increase in temperature, so that it becomes impossible for the solvent in solution       to accommodate gaseous solute in it and gas bubbles out. Hence, solubility of gas in liquid decreases with increase in temperature.