Diffusion Flashcards
1
Q
definition of diffusion
A
the net movement of particles from areas of high concentration to areas of low concentration down a concentration gradient
2
Q
what states does diffusion happen in?
A
liquids and gasses
3
Q
is diffusion faster in liquids or gases? why?
A
gases because liquids have weak attraction forces but according to the the kinetic particle theory, gases have no forces
4
Q
what does the speed of diffusion depend on?
A
how heavy molecules are (lower mass= faster)
5
Q
what experiment can be conducted?
A
cotton soaked in ammonia, cotton soaked in hydrochloric acid. whit ring appears near hydrochloric acid as ammonia’s mass is smaller and therefore it travels faster.
