Why does finely powdered sugar dissolve faster?
Answer and explanation
Correct answer: Surface area increases
For the same mass of sugar, grinding it into fine particles produces a much larger total surface area. More sugar surface is then exposed to water at once, increasing contact and the rate of dissolution. Once equilibrium is reached, particle size generally does not determine the final solubility at a fixed temperature. It changes speed, not the chemical identity or infinite capacity of the solvent.
Frequently asked questions
What is the correct answer to this question?
Surface area increases
Why is this the correct answer?
For the same mass of sugar, grinding it into fine particles produces a much larger total surface area. More sugar surface is then exposed to water at once, increasing contact and the rate of dissolution. Once equilibrium is reached, particle size generally does not determine the final solubility at a fixed temperature. It changes speed, not the chemical identity or infinite capacity of the solvent.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
