Why does ice cubes melt faster in hot water than in cold water?

Answer 1

because atoms in hot water vibrate faster, and cold water vibrates slower, hence movement generates heat, heat speeds up the ice cube's atoms, as the ice cube's atoms speed up it begins to expand, spread out it's mass and melt.

Answer 2

Ice cubes melt faster in hot water than in cold water because hot water has a higher temperature, which transfers more heat energy to the ice cubes, causing them to melt at a faster rate. The greater temperature difference between the ice cubes and hot water results in a faster transfer of thermal energy, melting the ice cubes more quickly.