Which option selects the most stable concentration term when temperature changes?
Answer and explanation
Correct answer: Molality
Temperature can change the volume of a solution through thermal expansion or contraction, so molarity and other volume-based terms may change. Molality uses the mass of solvent, and mass is essentially independent of temperature in ordinary solution calculations. Therefore molality is the more stable choice when temperature varies.
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 through thermal expansion or contraction, so molarity and other volume-based terms may change. Molality uses the mass of solvent, and mass is essentially independent of temperature in ordinary solution calculations. Therefore molality is the more stable choice when temperature varies.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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