Question

An increase in the temperature of a solution usually: a)increases the boiling point. b)increases the solubility of a gas in the solution. c)increases the solubility of a solid solute in the solution. d)decreases the solubility of a solid solute in the solution. e)decreases the solubility of a liquid solute in the solution.

Answer 1

Answer: Option (c) is the correct answer.

Explanation:

Relation between kinetic energy and temperature is as follows.

                      $K.E = \frac{3}{2}kT$

Since, kinetic energy is directly proportional to temperature. So, when there will be increase in temperature then this will also lead to increase in kinetic energy of the molecules of a substance.

So, when a solid substance is dissolved in a solution whose temperature is increased then molecules of the solid will also gain kinetic energy. As a result, more number of collisions will occur due to which bond between the molecules of solid will break.

Therefore, there will be increase in solubility of the solid.

Thus, we can conclude that an increase in the temperature of a solution usually increases the solubility of a solid solute in the solution.

Answer 2

One of the factor of solubility is temperature, as the temperature of the solution goes up, the :  C. increases the solubility of a solid solute in the solution

• Solubility can be regarded as the   degree that a particular substance can  dissolves in a solvent  so that solution can be formed.

• one of the main factor that affect solubility is temperature, as the temperature increase the molecules of the solution will gain more kinetic energy which allows them  to break the existing bonds so that bonds can be made and from a solution.

• Collision of molecules comes faster as temperature is increased hence high solubility.

Therefore, therefore, option C is correct.

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