minus reactants? The amino acid glycine, C2H5NO2, is one of the compounds used by the body to make proteins. The equation for its combustion is 4C2H5NO2(s) + 902(g) → 8CO2(g) +10H20(1) +2N2(g) For each mole of glycine that burns, 973.49 kJ of heat is liberated. Use this information, plus values of AHº for the products of combustion, to calculate AH° for glycine. AH = ! kJ/mol eTextbook and Media Hint Solution
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
![Incorrect. What is the heat of formation of elements in their standard states? Did you use the correct equation of products
minus reactants?
The amino acid glycine, C2H5NO2, is one of the compounds used by the body to make proteins. The equation for its combustion is
4C2H5NO2(s) + 902(g) → 8CO2(g) +10H20(1) +2N2(g)
For each mole of glycine that burns, 973.49 kJ of heat is liberated. Use this information, plus values of AHº for the products of
combustion, to calculate AH° for glycine.
AH =
kJ/mol
eTextbook and Media
Hint
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