Can chemical reactions take place at absolute zero?

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Discussion Overview

The discussion centers on whether chemical reactions can occur at absolute zero, exploring the implications of temperature on reaction activation thresholds and atomic behavior. Participants consider theoretical aspects of chemical bonding and the nature of atoms at extremely low temperatures.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Exploratory

Main Points Raised

  • Some participants question if a minimal temperature is necessary for chemical reactions to reach their activation threshold.
  • One participant argues that absolute zero cannot be reached, suggesting that this makes the question moot.
  • Another participant mentions that at absolute zero, atoms transition into a Bose-Einstein Condensate, which may affect their behavior.
  • A participant proposes that certain chemical reactions, such as the ionic combination of sodium and chlorine, could theoretically occur at arbitrarily low temperatures.
  • There is a discussion about the implications of traveling at the speed of light and its relevance to the topic, with some participants expressing skepticism about hypothetical scenarios.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of chemical reactions at absolute zero, with no consensus reached on whether reactions can occur under such conditions. Some argue against the possibility, while others propose specific reactions that might still happen.

Contextual Notes

Limitations include the theoretical nature of the discussion, the impossibility of reaching absolute zero, and the undefined conditions under which reactions might occur at very low temperatures.

conradcook
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Title says it all. I've been wondering.

The argument is, is there a minimal temperature required for any chemical reaction to reach its activation threshold?

Or would the energylessness of the atoms prevent bonds from forming (or dissolving, I guess)?


Conrad.
 
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You can't reach absolute zero, so this question is moot.

Furthermore, if this reaction is exothermic, you won't be able to even approach absolute zero until the reaction is complete.
 
And to top it all off, atoms aren't atoms at absolute zero. They smear out into what's called a Bose-Einsteinian Condensate.
 
Well... I can't travel at the speed of light, but if I could, time wouldn't pass.

Dave,

I just looked that up on Wikipedia. That answers my question! -- Many thanks.

Conrad.
 
Let's at least clarify the idea.

Are there chemical reactions that can take place at any arbitrarily low temperature?

I'm thinking that a sodium and chlorine atom drifting toward each other very slowly will still combine ionically regardless of temperature.
 
conradcook said:
Well... I can't travel at the speed of light, but if I could, time wouldn't pass.

We can't get to the speed of light either, so one cannot claim that this is true. Whether or not you could is irrelevant. We can't do it and our equations for transforming between frames does not work if you try to use c as the velocity in the equation.
 

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