ratio of average speed of an atom of neon to a molecule of hydrogen?

[Smooth Operater]

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what is the ratio of average speed of an atom of neon to a molecule of hydrogen at the same temperature and pressure?

the correct answer is 1:3.2

but how do u get it?

 

[Smooth Operater]

bump

 

[ihatestudying]

the equation, i think, is
(speed hydrogen)(sqaure root of M.W. hydrogen)=(speed neon)(sq.root M.W. neon). so rearranging it gives- (speed of H/speed of neon)= (sq.root mw neon/ sq.root mw of h). which is (sq.rt 20/sq.rt2) which is 3.2, so hydrogen is 3.2 times faster than neon.
ps the lighter the gas, the faster it is

 

[Smooth Operater]

hello, thanks for the help, but how do you get the equation (speed hydrogen)(sqaure root of M.W. hydrogen)=(speed neon)(sq.root M.W. neon)
fromr KE = 1/2mv^2 ??