Which concentration term does not change with temperature?
Answer and explanation
Correct answer: Molality
Temperature can change the volume of a solution, so molarity, volume percent, and mass-by-volume percent may change when their volume basis changes. Molality uses moles of solute per kilogram of solvent, and mass is not changed merely by heating or cooling. Therefore, molality is the temperature-independent choice, option B.
Frequently asked questions
What is the correct answer to this question?
Molality
Why is this the correct answer?
Temperature can change the volume of a solution, so molarity, volume percent, and mass-by-volume percent may change when their volume basis changes. Molality uses moles of solute per kilogram of solvent, and mass is not changed merely by heating or cooling. Therefore, molality is the temperature-independent choice, option B.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
