2006-09-11 01:06:02 · 9 answers · asked by marcelluswallace 2 in Science & Mathematics ➔ Biology
Everything else being equal, diffusion will occur from areas of high concentration to low concentration. For instance, if the concentration of oxygen is greater outside a cell than inside, the oxygen will diffuse into the cell.
2006-09-11 01:14:26 · answer #1 · answered by southeastside 2 · 2⤊ 0⤋
The greater difference in concentration, more rapid the diffusion. The closer the distribution of the material gets to equilibrium, the slower the rate of diffusion becomes.
2015-11-04 03:38:00 · answer #2 · answered by AHMED 1 · 0⤊ 0⤋
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The driving force of diffusion is difference in concentration of the compound. The molecules will tend to move towards places of lower (or zero) concentrations until the concetration equilibrates. Therefore it only requires the ability of the molecules to move; if they are "fixed" in a crystal lattice they can't move so much. Intermolecular distances will only affect the rate of diffusion, unless you have a big molecule like DNA trapped in a very thick gel. Then you might have so small "openings" in the gel that the big molecule cannot move through them.
2016-04-05 23:05:38 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Diffusion is a constant based in part upon the size (charge, etc) of the molecule, temperature and the density of the liquid (which is also affected by temperature). The concentration does not affect rate. The initial concentration affects the overall concentration at equilibrium.
2006-09-11 03:46:47 · answer #4 · answered by Anonymous · 1⤊ 3⤋
The greater the concentration of a particular substance is from one side of a membrane is, the easier it's diffusion to the other side is. For example in the lungs where the concentration of oxygen is high, the gas passes from the alveoli into the blood stream. Carbon dioxide on the other hand passes from the blood stream into the alveoli, from where it is expelled through exhaling.
The opposite direction of the gases is impossible due to their different concentration on the two sides of the alveolar membranes.
2006-09-11 01:16:08 · answer #5 · answered by Anonymous · 3⤊ 2⤋
It is determined by the first equation of Fick:
rate of diffusion is J= D*q* (dC/dx)
Where D is diffusion coefficient , q the surface through which diffusion takes place and dC/dx the concentration gradient (difference of the concentration in two points of the solution).
So the steepest the gradient (big dC/dx) the fastest the diffusion
2006-09-11 03:59:23 · answer #6 · answered by bellerophon 6 · 0⤊ 2⤋
Since concentration means that the amount of solute is more than that of the solvent,the rate of diffusion is affected.It is so because the amount of water (solvent) is less than the object hmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm..............find out yourself
2006-09-11 01:17:26 · answer #7 · answered by Rachit 1 · 0⤊ 3⤋
I bet that's a trick question and it doesn't
2006-09-11 01:35:01 · answer #8 · answered by johnno K 4 · 0⤊ 3⤋
do not know
2006-09-13 02:56:10 · answer #9 · answered by david w 5 · 1⤊ 4⤋