# Pressure problem

1. Nov 19, 2003

I have a somewhat unique question here.

I know that $$Pd$$ is a very good absorper of hydrogen. My question is, supposing you start with a given volume of $$Pd$$ and a given volume of $$H$$ or even $$H_2$$ and it is absorped by the $$Pd$$ is it possible to calculate the pressure that the hydrogen is under while it is inside the lattice structure of the $$Pd$$?

2. Nov 20, 2003

### Bystander

Try rephrasing your question; you want to know something about hydrogen in palladium, but as stated, it's not clear just what.

3. Nov 20, 2003

I wish to know the pressure that the hydrogen is under when it is absorped by the palladium. A given volume of $$Pd$$ will absorp a given amount of hydrogen. Since the volume of the $$Pd$$ remains constant, there must be a pressure exerted on the hydrogen to keep it within. I wish to know how to calculate that pressure.

4. Nov 20, 2003

### Mike H

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.

5. Nov 20, 2003