Diffusion rates are affected by

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(D) Diffusion is a passive process of movement of molecules from a region of higher concentration to a region of lower concentration.Factors affecting

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All of these

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(D) Diffusion is a passive process of movement of molecules from a region of higher concentration to a region of lower concentration.Factors affecting the rate of diffusion include:$1$. Concentration gradient: $A$ steeper gradient increases the rate of diffusion.$2$. Temperature: Higher temperature increases the kinetic energy of molecules,thereby increasing the rate of diffusion.$3$. Pressure: Changes in pressure can influence the movement of particles.$4$. Density of the diffusing substance: Diffusion is inversely proportional to the square root of the density of the gas.Therefore,all the given factors affect the rate of diffusion.

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