6. Suppose a pond's water contains 10.0 mg/L of some algae, which can be represented by the chemical formula C6H₁5O6N. Using the following reactions: C6H1506N +60₂6CO2 + 6H₂O + NH3 NH3 + 202 → NO3 + H* + H₂O Find the theoretical nitrogenous oxygen demand (NBOD) (mg/L) Atomic mass: C=12 H=1 O=16 N=14
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.
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