1. The problem statement, all variables and given/known data The escape velocity of Mars is 5 x 10 ^3 m/s . If the temperature of Mars is 300K , determine whether or not oxygen can exist on the planet . (Molecular mass of oxygen is 32 g/mol) 2. Relevant equations 3. The attempt at a solution Using p=1/3 rho <c^2> p= 1/3 (M/V) <c^2> pV=1/3 M <c^2> ---1 Then using pV=nRT pV=2(8.31)(300) since there are 2 moles of oxygen , pV=4986 Put this into 1 4986=1/3 (32) <c^2> <c^2>= 467.44 m/s Since the mean square speed is lesser than the escape velocity , oxygen exist . Am i correct ?