 #1
Suraj M
Gold Member
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Homework Statement
imagine a planet with half the mass and half the radius of earth ..with temperature reaching 800K
k=1.38×10^{23}
mass of O₂ = 5.3×10^{26}
does the planet have O₂ or not?
Homework Equations
½mv² = ½kT or ½mv² = kT or ½mv²= 3/2 kT
either only vertical or anything other than downward or average KE.....not sure..
The Attempt at a Solution
½mv² = ½kT
» v ≈ 456 m/s
and v_{e} = 11.2 km/s
so it shôuld have O₂and even if i take 2 or 3 degrees of freedom the planet will still have O₂
but the book and my teacher says that the planet does not have O₂ how??
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