The increase in the temperature of the aqueous solution will result in decrease of its:
Show Hint
- \(\text{weight \% of the solute}\)
- \(\text{mole fraction of the solute}\)
- \(\text{molarity}\)
- \(\text{molality}\)
The Correct Option is C
Solution and Explanation
Understanding Temperature Effects on Solution Concentration
Step 1: Molarity and Temperature Effects
Molarity (\( M \)) is calculated as:
\[ M = \frac{\text{moles of solute}}{\text{liters of solution}} \]
As temperature increases, the volume of the solution expands, leading to a decrease in molarity.
Step 2: Explanation of Incorrect Options
Weight % (A) and Mole fraction (B): These are independent of solution volume and are not significantly affected by temperature changes.
Molality (D): Defined per kg of solvent, molality remains unaffected by temperature changes.
Step 3: Selecting the Correct Option
Since molarity is volume-dependent, the correct answer is: (C) Molarity
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