A student says that excessive stirring will make the solubility of any substance infinite. Why is this wrong?
Answer and explanation
Correct answer: Stirring may increase rate, not remove the limit
Stirring improves contact between solute and solvent and can make the solute dissolve faster. It does not remove the equilibrium limit set by temperature, pressure, and the nature of the substances. Once saturation is reached, extra solute may remain undissolved. Thus A correctly distinguishes rate from solubility; the other explanations are false.
Frequently asked questions
What is the correct answer to this question?
Stirring may increase rate, not remove the limit
Why is this the correct answer?
Stirring improves contact between solute and solvent and can make the solute dissolve faster. It does not remove the equilibrium limit set by temperature, pressure, and the nature of the substances. Once saturation is reached, extra solute may remain undissolved. Thus A correctly distinguishes rate from solubility; the other explanations are false.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
