Comparing Kinetic Energy of N2 and CO2 Molecules at Ambient Conditions

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Discussion Overview

The discussion centers on the comparison of kinetic energy between nitrogen (N2) and carbon dioxide (CO2) molecules at ambient conditions, exploring the implications of molecular mass and temperature on kinetic energy. Participants examine whether CO2 molecules possess more kinetic energy than N2 molecules and seek to clarify the relationship between temperature and molecular motion.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Mathematical reasoning

Main Points Raised

  • One participant claims that CO2 molecules have less kinetic energy than N2 molecules due to their greater mass, suggesting that heavier molecules move slower and thus possess lower kinetic energy.
  • Another participant questions how molecular energy relates to temperature, indicating a desire for clarification on this relationship.
  • A subsequent response asserts that higher temperatures lead to increased molecular speed and kinetic energy, although the participant expresses uncertainty about their understanding.
  • A later reply confirms the relationship between temperature and kinetic energy but references external material for derivation, without providing details.
  • One participant admits a lack of calculus knowledge and seeks validation for their interpretation of the concepts discussed.

Areas of Agreement / Disagreement

Participants express differing views on the kinetic energy of CO2 versus N2 molecules, with no consensus reached. The relationship between temperature and kinetic energy is acknowledged, but the specifics remain under discussion.

Contextual Notes

Some assumptions regarding the definitions of kinetic energy and the effects of temperature on molecular motion are not fully explored. The discussion also reflects varying levels of mathematical understanding among participants.

Who May Find This Useful

This discussion may be of interest to students studying thermodynamics, molecular physics, or anyone seeking to understand the relationship between molecular mass, temperature, and kinetic energy.

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Two identical bottles contain the same number of molecules at ambiant conditions of temperature and pression.The first contains N2, and the second CO2.Tell if the it's true/false and explain why

The molecules of CO2 have more kinetic energy than the molecules of N2.

My answer : False because if we consider the mass of each sort of molecules, we see clearly that a molecule of N2 is 28,02 of mass unit while CO2 is 44,01 mass unit. The latter having a bigger mass, it clearly goes at a lower speed, which results in having less kinetic energy.

Would this justification be any good ?

Thank you!
 
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How is the energy of the molecule related to the temperature?
 
Well, if the temparture gets higher the molecules tend to move faster and produces more kinetic energy.Atleast, that's what I understood from reading my things...
 
I don't know any calculus :/ But is my interpretation any good??
 

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