Determine the dissociation energy with an electron beam

In summary, the conversation is about using an electron beam on hydrogen gas and calculating the dissociation energy of H2 using the appearance of H+ ions at 22 eV. There is a disagreement about the exact value, with one person suggesting it to be around 17 eV and another suggesting it to be around 3.6 eV. A resource is provided for further information.
  • #1
wrum
1
0
Hi!

If you use an electron beam on hydrogen gas and when the energy of the beam is 22 eV H+ start to appear, how can you calculate the dissociation energy of H2 using that information?

I've tried: 22 eV = D + "ionization energy of a H atom" etc, but couldn't make it add up.

I would be very thankful if someone could help me with this! =)
 
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  • #2

Related to Determine the dissociation energy with an electron beam

What is the process of determining dissociation energy with an electron beam?

The process of determining dissociation energy with an electron beam involves using an electron beam to break apart molecules and measure the amount of energy required for the bond to break. This energy is then used to calculate the dissociation energy of the molecule.

Why is an electron beam used for this process?

An electron beam is used because it has a high energy and is able to break apart molecules without causing any chemical reactions. This allows for accurate measurement of the dissociation energy without any interference from other factors.

What factors can affect the accuracy of the results?

The accuracy of the results can be affected by factors such as the intensity and stability of the electron beam, the purity of the sample being studied, and any external influences such as temperature or pressure changes.

How is the dissociation energy calculated from the results?

The dissociation energy is calculated by measuring the energy required for the bond to break and using mathematical equations to determine the strength of the bond. This can be done through various spectroscopic techniques and computational methods.

What are the practical applications of determining dissociation energy with an electron beam?

Determining dissociation energy with an electron beam has practical applications in fields such as material science, pharmaceuticals, and environmental studies. It allows for a better understanding of chemical bonds and reactions, which can aid in the development of new materials and drugs, as well as in pollution control and remediation efforts.

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