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

sugar crystals with stirring at 15°C

Explanation:

Rate of dissolution of solids in liquids depends on :

1.) Temperature: Increasing the temperature means more solute can be dissolved in the given amount of solvent because the energy of the solute particles increases and more it can interact with the solvent particles. The rate of dissolution of solid also increases in liquids.

2.) Size of the solute particles: If the solute particles is present in smaller size, more it can be dissolved because this action takes place on the surface of particles and decreasing the size increases the surface area of the solute particles. Hence, increasing the dissolution.

3.) Stirring: This process brings fresh solvent particles to come in contact with the solute particles and hence stirring increases the rate of dissolution.

Thus the sugar is most likely to dissolve in the form of crystals which have large surface area and at high temperature of with stirring.

explanation:

since this is put under health, i would define "ethical (medical) behavior" the way the oath for doctors is recited.   "first do no harm."

but the term in general means when given a choice between right and wrong, we should always choose right. if we do, then we are practicing ethical behavior.