Question: (d) At the solar surface the effective temperature is Tor 5700K and the electron pressure is po = 3 Pa. The ionization potential of aluminium

(d) At the solar surface the effective temperature is Tor 5700K

(d) At the solar surface the effective temperature is Tor 5700K and the electron pressure is po = 3 Pa. The ionization potential of aluminium is IP, (AI) = 6.0 eV and the ratio between the partition functions of the first ionized state and the neutral state is v/v = 0.16. What fraction of aluminium at the solar surface is neutral

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