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Probably because someone has sprayed a lavender perfume into your room or there is a lavender air freshener in your room hope this helps ya xxxxx
Nothing.
It's probably already been sprayed before so it might be on the outside of the bottle where you can smell it. If you're not near it, it's probably a strong perfume or you're in a ventilated room. :)
Diffusion. Where particles move from an area of high concentration to an area of low concentration. For example if perfume is sprayed in one corner of a room, it will be smelt soon after in the opposite corner. It is a random, natural process that doesn't require energy.
Iodine is called an indicator because when iodine is in a substance that was sprayed it indicates that diffusion has occured by the smell spreading in the room.
the particle of the perfume diffuses and moves
The air molecules in a warm room move faster than in a cold room, so the perfume particles will dissipate faster in a warm room.
why can the odor of perfume reach you?
Diffusion is the process of spreading of the gaseous molecule according to their kinetic energy. In this process, particles move from an area of high concentration to an area of low concentration. If the perfume is sprayed in one corner of a room, it will be smelt soon after in the opposite corner.
Which state of matter has properties that are responsible for your smelling the perfume of someone across the room ?
If it happens below normal room temperature, it's usually called "freezing". If it happens above room temperature, it's usually called "solidification".
diffusion