A saturated solution.
More sugar can dissolve in water than salt.
The variable for both sugar and salt is temperature: more sugar or salt will dissolve in water at a higher temperature. The amount of water is also a factor, since more water will be able to dissolve more sugar or salt.
Granulated sugar would dissolve faster because there is more surface area exposed to the water.
It is difficult to dissolve sugar in cold water, but very easy to dissolve in boiling hot water.It is because the solubility of sugar is very small in cold water. However, as the tempreature rises the solubility of the sugar increases.
Even in cold water sugar will dissolve eventually, but it does dissolve faster in hot water. Hot water molecules move faster than cold water molecules and therefore can more easily break sugar molecules out of solid sugar and into solution.
Temperature: more sugar will dissolve in water at a higher temperature. The amount of water is also a factor, since more water will be able to dissolve more sugar. If you are wondering about the rate, and not simply the amount, of sugar dissolving, then the surface area of the particles is also important. The greater the surface area, the more rapidly it will dissolve (smaller grains of sugar would dissolve more rapidly than a sugar cube, for instance).
What temperature is the tap water? A little will dissolve in room temperature tap water, but if you raise the temperature of the water more sugar will dissolve. If you boil the sugar, it will break down into two simpler sugars and won't precipitate when the water is cooled.
Hot water. Hot water can also dissolve slightly more sugar than cold water can.
When enough sugar is dissolved into the solvent (water) , or goes 'in to solution' , that no more will dissolve , the solvent is said to be 'saturated'. The more solvent you have the more sugar you can put into solution. No more sugar will dissolve once the solvent (now your solution) is saturated.
I assume that you mean 'dissolves in water'. The answer is yes, very much so. The higher the temperature of the water, the quicker the sugar dissolves. The reason for this is very simple. As the temperature increases, water molecules move more quickly as they have more energy. They are therefore more likely to collide with and 'attack' the sugar crystals, causing sugar molecules to separate from each crystal and disperse throughout the water forming a sugar solution.
The sugar cube in the hot water will dissolve faster because there are more and higher energy collisions between the water molecules and the sugar molecules which will cause the sugar to dissolve faster.
Sugar melts faster in hot tea because the heat of the water causes it to melt more quickly. Iced water is very cold and the sugar takes longer to dissolve.