-surface area (increase= increases rate of diffusion)
-concentration gradient (increases= increases rate of diffusion)
-thickness (decrease=decrease diffusion distance= increase rate of reaction)
-temperature (increase= increases kinetic energy=molecules move faster=increase rate of diffusion)
-size of molecules(small molecules=increase rate of diffusion)
![](https://img.wattpad.com/cover/272714285-288-k56915.jpg)
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A-level Biology Notes
General FictionTopics 1-4 of A-level Biology AQA New specification