Question

Bottled drinks are cooled more effectively when surrounded by lamps of ice than by cold water at 0°C. Why?

Answer 1

1. Ice at 0°C absorbs latent heat of fusion from the bottled drinks while melting, without any rise in its temperature.
2. Thus, ice removes more heat from the drinks than an equal mass of water at 0°C, which does not absorb this additional latent heat.

Therefore, bottled drinks are cooled more effectively by lumps of ice than by water at 0°C.