well are nose is the one that smells it so you should ask your nose but really the answer is RIBOSOMES
why can the odor of perfume reach you?
aroma
Just Cavali Pink is a perfume that is known for having a bright, floral, and fruity scent. A person can open the bottle pulling in an upwards directly, which will remove the cap.
When you open a bottle of perfume, the liquid will begin to vaporize at room temperature, and the scent will spread through the air. The smell of perfume reaches other parts of the room because gases have a high rate of diffusion. A few molecules of perfume are enough to let you detect the smell.
Evaporation
The people on the opposite side of the room will be able to smell the perfume due to the process of diffusion, where the vaporized perfume particles move from an area of high concentration (near the bottle) to an area of lower concentration (across the room). This process is driven by the perfume's vapor pressure, which is the pressure exerted by the vaporized particles above the liquid surface.
It depends on the brand of body rub. Usually the scent is artificial. The body scrub is usually made with coconut oil (which is odorless). Pop open the lid and smell the body wash. You can smell the wash in a grocery store without actually opening the entire bottle.
put it in your underarm till it start sweeting and foul smell comes..bottle will automatically get open
When a bottle of scent is kept open, its odor spreads throughout the room due to the phenomenon of diffusion. Molecules of the scent move from an area of higher concentration (near the bottle) to areas of lower concentration, gradually mixing with the air in the room. This movement occurs until the scent is evenly distributed, allowing its odor to be detected in all parts of the space.
I don't think any universal laws like gravity or friction effect gases so my bet would be that some would stay in an some would go out. Only way to know for sure is to open one. well wait, is it a liqiud perfume? cuz then they're not spraying out gases its a mist of liquid in which gas the perfume would stay in the bottle.
When perfume "expires", a few things could happen. The smell could dissappear or become very weak. The smell could also intensify or turn bitter, rotten, or have a new edge to it (indicating that it has gone bad). The liqid perfume could begin to congeal or form clumps, too.
Oxygen starts to react with the organic compounds and the reactants decay with a half-life; this depends on the amount of oxygen, temperature, time of exposure, and impurities in the perfume that may catalýze the reaction.