Question

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

Explanation:

The rate of dissolving depends on factors like surface - area to volume ratio, temperature, and agitation. Sugar crystals have a larger surface - area to volume ratio compared to a sugar cube, allowing for more contact with water. Higher temperature increases the kinetic energy of water molecules, speeding up the dissolving process. Stirring also helps in faster mixing and dissolving. So, sugar crystals with stirring at a higher temperature (15°C) will dissolve fastest.

Answer:

sugar crystals with stirring at 15°C