Calculate Fractional Abundance of HI,HII,H- & e- for Hydrogen

Thread starter goleafsgo113
Start date Oct 31, 2004
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Atmosphere Stellar

In summary, the equation for calculating the fractional abundance of each particle in hydrogen is f = n/(n + n<sub>0</sub>), where f is the fractional abundance, n is the number of particles and n<sub>0</sub> is the total number of particles. The number of particles in hydrogen can be determined using the mass of hydrogen and Avogadro's number. The number of particles for each particle in hydrogen is as follows: n(HI) = 0.5 x n(H), n(HII) = 0.25 x n(H), n(H-) = 0.25 x n(H), n(e-) = n(H). The fractional abundance of each particle in hydrogen can change

Oct 31, 2004

goleafsgo113

how can i calculate the fractional abundance of HI, HII, H- and e- for hydrogen in the photosphere (T=5770K) and density 10^17?

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Nov 1, 2004

walkera

Analysis of spectrum lines, A stronger line in a particular location means there is a lot of that substance to absorb at that particular wavelength.

What is the equation for calculating the fractional abundance of HI, HII, H- and e- in hydrogen?

The equation for calculating the fractional abundance of each particle in hydrogen is: f = n/(n + n₀), where f is the fractional abundance, n is the number of particles and n₀ is the total number of particles.

How do I determine the number of particles in hydrogen?

The number of particles in hydrogen can be determined using the mass of hydrogen and Avogadro's number. The number of particles is equal to the mass of hydrogen in grams divided by the molar mass of hydrogen (1.008 g/mol) multiplied by Avogadro's number (6.022 x 10^23 particles/mol).

What are the values for the number of particles in HI, HII, H-, and e- in hydrogen?

The number of particles for each particle in hydrogen is as follows: n(HI) = 0.5 x n(H), n(HII) = 0.25 x n(H), n(H-) = 0.25 x n(H), n(e-) = n(H).

Can the fractional abundance of each particle in hydrogen change?

Yes, the fractional abundance of each particle in hydrogen can change depending on factors such as temperature and pressure. These factors can affect the ionization of hydrogen atoms, resulting in changes in the fractional abundance of HI, HII, H-, and e-.

How is the fractional abundance of each particle in hydrogen used in scientific research?

The fractional abundance of each particle in hydrogen is used in various fields of science, including astrophysics, chemistry, and plasma physics. It is used to understand the physical and chemical processes occurring in hydrogen gas, such as ionization and recombination, and to make predictions about the behavior of hydrogen in different environments.