Question

Assertion: When a saturated solution of Potassium chloride is heated it becomes unsaturated.
Reason: Solubility of Potassium chloride increases with rising temperature.

a)Both A and R are true, and R is the correct explanation of A.
b)Both A and R are true, but R is not the correct explanation of A.
c)A is true but R is false.
d)A is false but R is true.
e)Both A and R are false

Answer 1

option a) is correct

Assertion: When a saturated solution of Potassium chloride is heated it becomes unsaturated.

Reason: Solubility of Potassium chloride increases with rising temperature.

a)Both A and R are true, and R is the correct explanation of A.

thanks

Answer 2

Assertion: When a saturated solution of Potassium chloride is heated, it becomes unsaturated

• Solubility is a function of temperature.
• The solubility of solid solutes generally increases by increasing the temperature.
• Therefore when a saturated solution of KCl is heated, it becomes unsaturated and starts dissolving more solute.

Reason: Solubility of Potassium chloride increases with rising temperature

• When the temperature increases, the particles of KCl absorb energy and start moving towards the disordered state.
• Hence, reaching a highly dispersed solution state by the second law of thermodynamics.
• So, as the temperature of a KCl and water mixture increases, then the solubility of the KCl will also increase.

Hence, the correct option is a)Both A and R are true, and R is the correct explanation.