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Introductory Physics Homework Help
Find the mean number density of particles in the stellar atmosphere.
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[QUOTE="Jon.G, post: 4758797, member: 495651"] [h2]Homework Statement [/h2] The atmosphere of a star has a mean radiation pressure of 0.33 N m[SUP]-2[/SUP]and a mean gas pressure of 8300 N m[SUP]-2[/SUP]. Calculate: a) the mean number density of particles in the stellar atmosphere, and b) the radiation pressure in a stellar atmosphere with twice the effective temperature. [h2]Homework Equations[/h2] [itex] Radiation pressure = \frac{4 \sigma T^{4}}{3c} [/itex] where σ = 5.67*10[SUP]-8[/SUP] [h2]The Attempt at a Solution[/h2] a) From the radiation pressure equation, I get T=6016K and I'm not sure where to go from here. I would have thought to have used pV=nRT, but then that bring volume into the equation. I know it's probably really simple and is just something I am forgetting, but I just can't figure it out :/ b) Multiply the given value (0.33) by 16, as it is T[SUP]4[/SUP] 5.28Pa Thanks [/QUOTE]
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Introductory Physics Homework Help
Find the mean number density of particles in the stellar atmosphere.
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