Question

The magnitude of heat of solution ..... on addition
of solvent to solution
(1) Decreases
(2) Increases
(3) Remains constant
(4) Increases or decreases​

Answer 1

Answer:

If no reaction takes place between the solute and solvent the magnitude of heat remains constant.

Case is not the same if any chemical reaction takes place because reaction may be exothermic or endothermic.

Answer 2

The magnitude of heat of solution (3) Remains constant on addition  of solvent to solution.

Explanation:

• When the reactants from product, it is called as reaction.
• The magnitude of heat of a solution is called as specific enthalpy. The value of specific enthalpy is negative.
• The specific enthalpy depends on the reaction, it does not depend on solute or solvent.
• Thus, when the solvent is added to solution, then the specific enthalpy remains constant.