Pressure of H in Pd Lattice: Calculation & Analysis

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Discussion Overview

The discussion revolves around the calculation of the pressure exerted on hydrogen when it is absorbed by a palladium (Pd) lattice. Participants explore the relationship between the volume of Pd, the amount of hydrogen absorbed, and the resulting pressure within the lattice structure. The inquiry touches on theoretical and practical aspects of hydrogen absorption in materials.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant poses a question about calculating the pressure of hydrogen when absorbed by palladium, emphasizing the constant volume of Pd and the need for a pressure exerted on the hydrogen.
  • Another participant suggests rephrasing the question for clarity, indicating that the original query lacks specificity.
  • A clarification is provided by the original poster, reiterating the desire to understand the pressure on hydrogen within the palladium lattice and the relationship between the volumes of Pd and hydrogen.
  • A reference to a scientific paper is provided, which discusses pressure-composition isotherms for palladium hydride, suggesting it as a starting point for further exploration.

Areas of Agreement / Disagreement

The discussion does not present a consensus, as participants are still clarifying the original question and exploring the topic without reaching a definitive conclusion.

Contextual Notes

The inquiry assumes a relationship between the volume of Pd and the amount of hydrogen absorbed, but does not specify the conditions under which the pressure is to be calculated, nor does it address potential complexities in the absorption process.

Brad_Ad23
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I have a somewhat unique question here.

I know that [tex]Pd[/tex] is a very good absorper of hydrogen. My question is, supposing you start with a given volume of [tex]Pd[/tex] and a given volume of [tex]H[/tex] or even [tex]H_2[/tex] and it is absorped by the [tex]Pd[/tex] is it possible to calculate the pressure that the hydrogen is under while it is inside the lattice structure of the [tex]Pd[/tex]?
 
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Try rephrasing your question; you want to know something about hydrogen in palladium, but as stated, it's not clear just what.
 
I wish to know the pressure that the hydrogen is under when it is absorped by the palladium. A given volume of [tex]Pd[/tex] will absorp a given amount of hydrogen. Since the volume of the [tex]Pd[/tex] remains constant, there must be a pressure exerted on the hydrogen to keep it within. I wish to know how to calculate that pressure.
 
Wolf, et al. (1993) "Pressure-composition isotherms for palladium hydride." Phys. Rev. B. 48: 12415 - 12418.

You can start here and refine as needed.

Heh.
 
Thanks.
 

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