A fragrance that is sprayed at one end of the room can spread throughout the room by the process of
Diffusion is a process by which particles of matter intermix with each other, spontaneously and move from a higher concentration to lower concentration. The fragrance from one corner of the room spreads throughout the room as the particles constituting the fragrance intermix with air and spread throughout the room. The rate of diffusion is directly proportional to intermolecular spaces present between them.