Question

Solid dissolves more quickly in hot water because 

1) Solids are more soluble in hot water and do not dissolve at all in cold water 

2) Increased temperature increases kinetic energy of particles and thus rate of inter mixing increases

3) Increased temperature decrease the size of the particles so rate of inter mixing increases 

4) Increased temperature attract the particles of solid more closer to liquids which then diffuses very quickly and got mixed​

Answer 1

Answer:

Option 2 is a correct answer

Answer 2

Explanation:

Key Points

For many solids dissolved in liquid water, the solubility increases with temperature.

The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.

The increased vibration (kinetic energy) of the solute molecules causes them to dissolve more readily because they are less able to hold together.

Key Terms

solubility: The amount of a substance that will dissolve in a given amount of a solvent to give a saturated solution under specified conditions.

kinetic energy: The energy possessed by an object because of its motion, equal to one half the mass of the body times the square of its velocity.

It may help you!!