Cyclohexane vs Hexene: Isomers & Soot

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Discussion Overview

The discussion revolves around the comparison of hexene (C6H12) and cyclohexane (C6H12) in terms of their isomeric relationship and the amount of soot produced during combustion. The scope includes conceptual understanding of isomerism and the factors influencing soot production in combustion reactions.

Discussion Character

  • Homework-related
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant questions whether hexene and cyclohexane are isomers, specifically considering structural isomerism and functional group isomerism due to their belonging to different homologous series.
  • Another participant emphasizes the need to refer to the definition of isomers to determine if hexene and cyclohexane qualify as isomers in general.
  • Concerns are raised about the amount of soot produced during combustion, noting that it is not a constant and depends on specific reaction conditions.
  • A participant clarifies that they are considering the combustion of both compounds under room conditions.
  • There is a suggestion that the inquiry may relate to the differences in combustion characteristics between alkanes and alkenes.

Areas of Agreement / Disagreement

Participants express uncertainty regarding whether hexene and cyclohexane are isomers and whether they produce the same amount of soot, indicating that multiple views and conditions are being considered without reaching a consensus.

Contextual Notes

Limitations include the lack of specific combustion conditions provided for the soot production inquiry, which may affect the conclusions drawn about soot generation.

davon806
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Homework Statement


Hi,
consider hexene(C6H12) and cyclohexane(C6H12)
1:Are they isomers?
2:Do they produce the same amount of soot?


Homework Equations





The Attempt at a Solution


1:um...I have only learned structural isomerism.
Are they functional group isomers?As they belong to different homologous series
(cycloalkanes and alkenes)..?
2:I am not sure.So far I only know that the C to H ratio affect the amount of soot produced.
The larger the C/H ratio,the more the soot produced.However, the C/H ratio in both compounds are equal,are there any other factors affecting the amount of soot given out in the combustion?
 
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The word "isomer" has a definition and a meaning. Yes there are different kinds of isomers, but you have been asked whether they are isomers in general -- no particular type. So find the definition and check those two compounds.

Part (2) Do they produce the same amount of soot?

For any particular fuel, the amount of soot produced is not a constant -- it depends a great deal upon the exact reaction conditions. Were you given any particular conditions under which the fuel was to be burnt or thermally decomposed without air? Acetylene produces huge amounts of soot if you just throw calcium carbide into a puddle and light it up. It produces almost none if you are using an oxy-acetylene welder!
 
Q1 thx
Q2 I mean burning them under the room condition
 
I guess the question aims at the difference between burning of alkanes and alkenes.
 

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