Conside pothetical chemical reaction: A+B C+D (In this equation 4, B, C and D stand for some unknown chemical formulas.) Here is an energy diagram for the reaction: 400- energy C+ D 200 (k]/mol) A+ B reaction coordinate Use the energy diagram to answer these questions. What is the heat of reaction? | k/mol Exothermic Is the reaction exothermic or endothermic? Endothermic Neither Yes. it's k/mol Can you determine the activation energy? No. Can you determine the ectivetion energy of the reverse react or? Ves it's kJ/mol No Explanntion
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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O KINETICS AND EQUILIBRIUM
Interpreting a reaction energy diagram
Conside
potlhebical chemical reaction:
A+BC+D
(In this equation 4, B, C and D stand for some unknown chemical formulas.)
Here is an energy diagram for the reaction:
400
300
energy
C + D
(kJ/mol)
A + B
reaction coordinate
Use the energy diagram to answer these questions.
What is the heat of reaction2
| k/mal
Exothermic
Is the reaction exothermic or endothermic?
Endothermic
Neither
Ves, it's J/mol
Can you determine the activation energy?
No
Can you decermine he activetion energy of the reverse react on?
Yes t's kJ/mol
No.
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