If a bottle of perfume were spilled in the corner of a large lecture hall,the students sitting near that corner of the room would very quickly smell the perfume.Over time,the students sitting in the far corner of the room would smell the perfume.What phenomenon has occurred to the perfume molecules that have entered the air?

Question

Quizplus · Accepted Answer

The best choice is simple diffusion. This is because the perfume molecules have entered the air and are moving from an area of high concentration (the spill area) to an area of low concentration (the rest of the room) until they are evenly distributed. This is a classic example of diffusion. Osmosis is the diffusion of water molecules across a selectively permeable membrane, and facilitated diffusion and active transport require the use of proteins and energy to move molecules across a membrane, which is not the case in the scenario given.

If a Bottle of Perfume Were Spilled in the Corner