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    If, hypothetically speaking, 5 blocks a permeable substance of different volumes were cut into the same shape (cube) and placed into separate solutions of equal volumes, would the rate of diffusion be the same - despite diffusion taking longer to reach centre because of differences in sizes of the blocks?
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    Surely if the diffusion takes longer then the rate of diffusion can't be the same?


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    no the bigger the volume of the cube is, the smaller its surface area to volume ratio and the slower its rate of diffusion is.
 
 
 
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