Question

If a friend is making lemonade from an instant mix, which set of conditions would lead to a faster rate of dissolving the mix in the pitcher of water?
Responses

Cold water and powdered lemonade
Cold water and powdered lemonade

Cold water and lemonade tablets
Cold water and lemonade tablets

Warm water and powdered lemonade
Warm water and powdered lemonade

Warm water and lemonade tablets
Warm water and lemonade tablets

Answer 1

Warm water and powdered lemonade.

Why: Higher temperature increases molecular motion and diffusion so solids dissolve faster, and powdered mix has much more surface area than compact tablets, so it dissolves more quickly. Stirring also speeds dissolving.