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Water Potential & Osmosis - Investigative Coursework Background Research: Diffusion is the net movement of molecules from a region of higher concentration to a region of lower concentration. This occurs until the molecules are evenly spread out and no more collisions can take place. Fick's Law Of Diffusion Fick's law of diffusion is used to measure the rate of diffusion. It states that: The rate of diffusion = surface area x concentration difference thickness of membrane This suggest that the rate of reaction will be faster when the surface area and concentration difference is larger and the membrane is thinner. When carrying out my experiment, I must bear in mind Fick's law and use the equation to maximise the surface area of my potato chips so that the rate of reaction is faster. The Collision Theory (Temperature (°C), Concentration & Kinetic Energy) Increasing the temperature of a reaction, increases the rate of reaction. As does increasing the concentration...

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