Question
Question: On dissolving sugar in water at room temperature solution feels cool to touch. Under which of the fo...
On dissolving sugar in water at room temperature solution feels cool to touch. Under which of the following cases dissolution of sugar will be most rapid?
A
Sugar crystals in cold water
B
Sugar crystals in hot water
C
Powdered sugar in hot water
D
Powdered sugar in hot water
Answer
Powdered sugar in hot water
Explanation
Solution
Powdered sugar has large surface area and thus dissolves faster in hot water. As solution feels cool to touch dissolution in endothermic so, dissolution will be favoured at high temperature.