Why can molarity change when temperature changes?
Answer and explanation
Correct answer: Because the volume of solution can change
Molarity is moles of solute divided by volume of solution. The amount of solute normally remains unchanged, but heating or cooling can cause the solution volume to expand or contract. Since the denominator changes, molarity changes. Molality is less affected because it uses solvent mass, which does not change appreciably with temperature.
Frequently asked questions
What is the correct answer to this question?
Because the volume of solution can change
Why is this the correct answer?
Molarity is moles of solute divided by volume of solution. The amount of solute normally remains unchanged, but heating or cooling can cause the solution volume to expand or contract. Since the denominator changes, molarity changes. Molality is less affected because it uses solvent mass, which does not change appreciably with temperature.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
