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.
I do not understand how I solve to fugure out the names of these substitutde hydrocarbons.
![### Image Transcription for Educational Website
#### Chemical Structures of Organic Compounds
The image contains two detailed structural diagrams of organic compounds, each labeled with a numbering system for reference.
### Compound 4
The diagram for compound 4 shows a carbon backbone with various substituents:
- The structure consists of a chain of 8 carbon atoms.
- The substituents are as follows:
- **C2H5** group attached to the first carbon atom.
- Two **Cl** atoms attached to the second carbon atom.
- A **CH3** group attached to the fourth carbon atom.
- A **Br** atom attached to the fifth carbon atom.
- The seventh carbon is double-bonded to an eighth carbon, with two hydrogen atoms attached to it.
Chemical formula breakdown based on substituents:
\[ \text{C}_2\text{H}_5 - \text{C}(\text{Cl})(\text{Cl}) - \text{C} - \text{C}(\text{CH}_3) - \text{C}(\text{Br}) - \text{C} = \text{C}(\text{H}) - \]
*The substituents are attached directly to specific carbon atoms along the backbone.*
### Compound 5
The diagram for compound 5 shows a more complex carbon backbone with multiple substituents:
- The structure consists of a chain of 10 carbon atoms.
- The substituents are as follows:
- Two **Br** atoms attached to the first and second carbon atoms respectively.
- **C2H5** group attached to the third carbon atom.
- **F** atom attached to the sixth carbon atom.
- Another **C2H5** group attached to the seventh carbon atom.
- Two more **Br** atoms attached to the eighth and ninth carbon atoms respectively.
- A **CH3** group attached to the tenth carbon atom.
Chemical formula breakdown based on substituents:
\[ \text{H} - \text{C}(\text{H})(\text{H})(\text{Br}) - \text{C}(\text{H})(\text{Br}) - \text{C}(\text{H})(\text{C}_2\text{H}_5}) - \text{C} - \text{C}(\text{H}) -](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F154975ff-ecfa-4e64-bed9-4b9b79aed696%2F81a2eb47-b022-499a-bbf0-36c6d6d98a35%2Foogfubh_processed.jpeg&w=3840&q=75)
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