NEET 2017 · ChemistryPrevious Year Question
Which of the following concentration terms is dependent on temperature?
Answer: (B) Molarity. \textbf{Answer:} (B) Molarity \textbf{Solution:} Molarity is moles of solute per litre of \emph{solution}.
- A.Molality
- B.Molarity✓
- C.Mole fraction
- D.Mass percentage
Correct Answer
(B) Molarity
Solution & Explanation
\textbf{Answer:} (B) Molarity \textbf{Solution:} Molarity is moles of solute per litre of \emph{solution}. It involves the volume of solution, which expands or contracts with temperature, so molarity is temperature-dependent. Molality (per kg solvent), mole fraction, and mass percentage are all defined using mass only, so they are independent of temperature.
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