Question

The solubility of a gas in liquid decreases with the increase in temperature.

• A. True
• B. False

Answer 1

The correct option is A True

• The solubility of a substance is the maximum amount of a substance (solute) which can dissolve in 100g of a solvent at a given temperature.
• Solubility of a substance depends on the nature of the solute, nature of the solvent and temperature.
• Adding heat energy to the gas -liquid solution provides thermal energy that overcomes the attractive forces between the gas & the solvent.
• Hence dissolution of gas in liquid is an exothermic process.
• As the temperature increases the solubility of a gas in a liquid decreases.
• Therefore, the given statement is true.