Answer :
Final answer:
The solubility of a compound decreases as temperature decreases, leading to precipitation as the solution cools from 108°C to 25°C, hence correct answer is D. Precipitation occurs.
Explanation:
Solubility and Temperature: The solubility of most solids increases with increasing temperature. This means a hot solution can hold more dissolved solute than a cold solution.
Saturated Solution: A saturated solution is one that contains the maximum amount of solute that can dissolve at a given temperature. If you try to add more solute, it will precipitate (form a solid) because the solution is already at its maximum capacity.
In this scenario: We have a saturated solution at 108°C, which means it contains 37.1 g of the compound dissolved in 100 mL of solution.
When this solution cools to 25°C, the solubility of the compound decreases to 33.1 g per 100 mL.
Since the solution originally contained 37.1 g (more than the saturation limit at 25°C), the excess solute (37.1 g - 33.1 g = 4 g) will come out of solution and form a precipitate.
Therefore, cooling the saturated solution from 108°C to 25°C will result in precipitation.
