Part 2: Combustion of Ethanol Equation for Enthalpy AH = Honds broken- Hoonds formed The following table is a list of selected bond energies. The bonds present in this table are common bonds for combustion reactions. Selected Bond Energies Bond Bond Energy Bond Bond Energy (kl/mole) (kl/mole) H-H 436 C=0 799 0=0 495 C-C 348 463 C=C 614 C-H 413 С-C (aromatic) 519 C-O 358 N3D 623 Use the following balanced equation and chart to oomplete the bond energy calcu ations for the fuel. metnane CH,OH 30,-2 CO,-3 Hy0 Compound Total Bond Energy Oxygen, O 495 kJ/mol Carbon Dioxide, CO2 1598 kl/mol Water, H,O 926 kJ/mol
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.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
