Reply To: What is the speed of smell?

Curiosity Science Chemistry What is the speed of smell? Reply To: What is the speed of smell?

Eliminating any turbulent effects, you would need to calculate the molar mass of the two compounds that creates the smell. Then by simply applying Graham’s law,

$$\large \frac{Diffusion \ Rate \ 1}{Diffusion \ Rate \ 2} = \large \sqrt {\frac {Molar \ Mass \ 2}{Molar \ Mass \ 1}}$$

you can find which the faster smell is. Still, it won’t be that accurate.

Also, if you are so curious, you can analyze the diffusion co-efficient using the formula from the wiki I linked above.