Fahrenheit 451 and activation energy

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    Activation Energy
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Discussion Overview

The discussion revolves around the concept of activation energy in relation to the burning temperature of paper, specifically referencing the temperature of 451 degrees Fahrenheit as noted in the context of Ray Bradbury's "Fahrenheit 451." Participants explore the Arrhenius equation and its application to predicting reaction temperatures, particularly for the combustion of methane and oxygen.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant notes that 451 degrees Fahrenheit is the temperature at which paper burns, linking it to the activation energy required for the combustion reaction.
  • Another participant argues that 451 degrees Fahrenheit is too low for paper to ignite, suggesting that the actual ignition temperature may vary based on different sources.
  • References to experimental data are provided, indicating that the ignition temperature of paper can range from 424 to 474 degrees Fahrenheit, depending on the source.
  • A participant points out a potential conversion error, stating that 451 degrees Celsius equals 844 degrees Fahrenheit, implying that there may be confusion regarding temperature units.
  • There is a suggestion that the numbers needed for the Arrhenius equation are determined experimentally and may be found in handbooks.

Areas of Agreement / Disagreement

Participants express disagreement regarding the ignition temperature of paper, with some asserting that 451 degrees Fahrenheit is too low while others reference varying data that supports different ignition points. The discussion remains unresolved regarding the exact temperature at which paper ignites.

Contextual Notes

Participants reference different sources for ignition temperatures, indicating a dependence on experimental data and definitions that may vary. There is also a noted potential confusion between Fahrenheit and Celsius temperature scales.

NeilWallace
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I know from the movie that paper burns at fahrenheit 451. I guess this refers to the activation energy paper and oxygen require to react into CO2 and water.

I have been trying to understand the Arrhenius equation which I think is the key to predicting at what temperature a reaction will take place but I don't understand what numbers you plug into predict the temperature say methane and oxygen will react CH4 and O2 can anyone help?
 
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451 deg F is well too low to start paper burning. Not that it matters much.

Numbers you need are determined experimentally, you may be able to find them in handbooks.
 
Last edited by a moderator:
451 °C = 844 °F

I am not saying someone made a NASA style mistake, but numbers are suggestive.
 

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