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Question

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


A
True
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B
False
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Solution

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.

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