Sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. When water is heated, the molecules gain energy and, thus, move faster.
Coffee should dissolve faster in hot water due to the increased energy that the hot water has. The hot water molecules will be traveling around and colliding with coffee particles with greater energy than cold water, making their interactions occur more frequently than with cold water which is more static.
Answers & Comments
It's Salt and Sugar.
Answer:
sugar and coffee
Explanation:
Sugar dissolves faster in hot water than it does in cold water because hot water has more energy than cold water. When water is heated, the molecules gain energy and, thus, move faster.
Coffee should dissolve faster in hot water due to the increased energy that the hot water has. The hot water molecules will be traveling around and colliding with coffee particles with greater energy than cold water, making their interactions occur more frequently than with cold water which is more static.