Since the purpose of an ice cube is to keep a drink cold, is it better for an ice cube to have a high volume or a low volume? Why? I really don't understand this. Can someone explain it to me?

Answer 1

To keep the drink cold, the ice must last as long as possible.

Thus, it should have a small surface exposed. That is where the heat transfer takes place.

So, you need a high volume relative to its surface.