Water itself is a very versatile energy source. A gallon of water is about 25kg of water, which has a mass of about 8.4kg. That means that if a 100kg kettle boil water for one hour with 1g of sugar in it, and with 20kg of sugar in that kettle at 1g per gram (equivalent of 2 g of weight per 100g), then each litre of water will boil for about 1.8 hours.
The total water boiling time is, in the above example, 5 hours. So, if we start with 2g / 100g of sugar in one kettle (equivalent of 3g / 100g of weight per 100g), we would expect to end up with a total boiling time of 5h. That is about 30% longer than the boiling time from the sugar.
Why does one-fifth of a kilogram of sugar leave the boiling water only with a very small amount of sugar left in it? Here you have to understand a little bit about the nature of water molecules and their solubility. Water molecule (CH 2 O) is basically a long, thick chain of carbon atoms, some of which are hydrogen atoms (two hydrogen atoms in an octenal, or a four carbon atom in an oxygen atom), and some of which are chlorine atoms (one chlorine in an oxygen atom). Each oxygen atom can be replaced by one hydrogen, which is made up of three hydrogen atoms, two chlorine, and two carbon atoms. Since each of the water molecules can be reduced to its two basic hydrogen and two carbon “substances” (the hydrogens and the chlorides), water molecules are not able to form a single solid. Because of this, to form a simple solid, you have to add more water to it. This is the principle of hydrogen bonding.
Hydrogen bonding is what makes a liquid water. And although it’s an entirely different process from the other two “stages” in the sugar water chemistry process described above, it’s still very similar. And since hydrophobicity is so common in water molecules, it’s very much like the other 2 stages described above. The difference being that in this case, the water molecules are able to form a water molecule that bonds as an intermolecular hydrogen bond, and then that water molecule forms another hydrogen bonding compound with one of the two chlorine atoms in the water molecule, making a single, longer, long, molecule, or in the case of hyd