Question

Sugar crystal dissolve faster in hot water than cold water

Answer 1

Sugar crystal dissolve faster in hot water than cold water as hot water has a higher temperature than cold water which means the water molecules are moving faster, on average, Therefore, more collisions are taking place between the sugar crystals and the water molecules and the collisions are more energetic. This results in the water molecules overcoming the sugar crystal bonds more easily in the hot water. That's one reason why we wash dishes in hot water.