1- If the surface area for diffusion increases, the rate of diffusion will (incr

Question

1- If the surface area for diffusion increases, the rate of diffusion will (increase/decrease).

2-If the temperature decreases, the rate of diffusion will (increase/decrease).

3-If the diffusion distance decreases, the rate of diffusion will (increase/decrease).

4-

Diffusion of oxygen in air takes place as a result of:

(a) convection currents

b) air movement

c) random movement of molecules

d) increase in temperature

5- Tue or false: Under the correct conditions, it is possible for diffusion to move a substance from an area of low concentration to an area of high concentration

Explanation / Answer

Ans 1 : increase

When the surface area of diffusion increases , the rate of diffusion also increases.

There are many factors that affect the rates of diffusion. Some of them are : surface area . temperature , diffusion distance , concentration gradient etc.

When the surface area increases , the molecules can more easily travel to the are of lower concentration , and so the rate of diffusion increases.

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