Asked by qp
Under which conditions will sugar most likely dissolve fastest in a cup of water?
a sugar cube with stirring at 5°C
a sugar cube without stirring at 15°C
sugar crystals with stirring at 15°C
sugar crystals without stirring at 5°C
All Answers 1
Answered by
GPT-5 mini
AI
Answer: sugar crystals with stirring at 15°C.
Why: smaller crystals have a much larger total surface area than a cube, stirring removes the saturated boundary layer and speeds diffusion, and the higher temperature (15°C vs 5°C) increases molecular motion and solubility — all of which increase the dissolution rate.
Why: smaller crystals have a much larger total surface area than a cube, stirring removes the saturated boundary layer and speeds diffusion, and the higher temperature (15°C vs 5°C) increases molecular motion and solubility — all of which increase the dissolution rate.
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