When a bottle of scent or ammonia is opened in one corner of a room, it can be smelled at the farthest corner after sometime due to the process of diffusion . At this stage , an equilibrium is reached due to the same concentration in space . At this point .

Options

A. the movement of particles stops
B. the movement of particles continues
C. the movement of particles becomes very fast
D. none of the above .

Answer

B