
Heat of Combustion
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Heat of Combustion
Hi! Can anyone explain the relationship behind the heat of combustion and the structure of monosaccharide and disaccharide? For our report, we are supposed to explain the calculated heat of combustion by analyzing the chemical structure of α-D-galactose, α-D-glucose, β-D-fructose, and sucrose. I understand that sucrose is the only disaccharide but I don't understand how come the remaining three has different heat of combustions when they have the same chemical formula and α-D-glucose and β-D-fructose have the same combustion process. Please help 

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Re: Heat of Combustion
Monosaccharides are the simplest form of carbohydrates and are composed of a single molecule or subunit. The disaccharides are composed of two monosaccharides linked together, and polysaccharides are composed of 3 or more monosaccharides linked together. We will now examine each of these types of carbohydrates
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Re: Heat of Combustion
As far as I know, the heat of combustion of monosaccharides and disaccharides is influenced by their molecular structures, specifically the arrangement of hydroxyl groups and the presence of different functional groups. The stereochemistry of the molecules and the formation of glycosidic bonds affect their energy content and heat of combustion.Wainscot wrote: ↑Thu Oct 12, 2023 8:44 pm Hi! Can anyone explain the relationship behind the heat of combustion and the structure of monosaccharide and disaccharide? For our report, we are supposed to explain the calculated heat of combustion by analyzing the chemical structure of α-D-galactose, α-D-glucose, β-D-fructose, and sucrose. I understand that sucrose is the only disaccharide but I don't understand how come the remaining three has different heat of combustions when they have the same chemical formula and α-D-glucose and β-D-fructose have the same combustion process. Please help![]()

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Re: Heat of Combustion
The relationship between the heat of combustion and the structure of monosaccharides and disaccharides lies in the number of carbon-hydrogen bonds in the molecules. The more carbon-hydrogen bonds there are, the more energy is released during combustion. This relationship is based on the principle that the combustion process involves breaking these bonds and forming carbon dioxide and water.