How long on average would it take an oxygen gas molecule (02) to diffuse a distance...

Question

Question

How long on average would it take an oxygen gas molecule (02) to diffuse a distance of 15.0 mm in air? Hint: See Example 12.24

science physics

Answer 1

Answer #1

Apply

time = x² / (2D)

where

D = diffusion constant = 10^-9 m²/s

x = distance = 15 mm = 15 *10^-3 m

then, substitute

t = (15 *10^-3)² / 2 * 10^-9

= 112.5 * 10^-3 sec

= 3.125 * 10 ^-5 hours

Answer 2

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