The Diffusion Constant for Oxygen Through Water Is $1.0 \times 10^{-9} \mathrm{~m}^{2} / \mathrm{s}$

Multiple Choice

The diffusion constant for oxygen through water is $1.0 \times 10^{-9} \mathrm{~m}^{2} / \mathrm{s}$ . What is the time for an oxygen molecule to diffuse $1 \mathrm{~cm}$ ?

A) $5.0 \times 10^{4} \mathrm{sec}$
B) $6.0 \times 10^{4} \mathrm{sec}$
C) $2.0 \times 10^{4} \mathrm{sec}$
D) $4.0 \times 10^{4} \mathrm{sec}$
E) $3.0 \times 10^{4} \mathrm{sec}$