00:01
We want to know if the fuel value of glucose in its linear form is the same or different from its fuel value in the cyclic ring form.
00:10
The linear structure of glucose is shown on the left, and its cyclic ring form is shown on the right.
00:17
Fuel value can be defined as the amount of energy that is released upon complete combustion of a given mass of a substance.
00:25
Glucose is the same molecule, whether we're looking at it in the linear or cyclic form.
00:30
So therefore, we're really interested in the differences in energies between these two structures.
00:37
If there is a difference in energy between them, then we can say that the fuel values between these two forms of glucose are different.
00:44
If we look at the linear structure, we notice that in order to convert to the cyclic form, these electrons from the double bond have to be dispelled to the oxygen in this intramolecular bonding...