Can smells pass through liquids?

Two words: Bath. Farts. 

22nd July 2009
Can smells pass through liquids? (iStock)

Asked by: Stan Arlington, by email

Yes, although many aroma molecules have low solubility in water and their diffusion is slower because there are more solvent or solid molecules in the way.

 


Get more fascinating Q&As from BBC Focus magazine by following @sciencefocusQA