I-diffusion idla ngokwenzeka nge-gas okanye nge-liquid. Kuyenzeka okokuba uyibone i-diffusion isenzeka xa ii-liquids ezimbini zixutywe kwizitya ezi-transparent. Ichaza intshukumo yee-particles emi eyenzeka ndawonye kuzo zonke ii-liquids kwanakwii- gases.ezi particles ziyabula zigqibe yonke indawo ekwesi sitya zide ziman'ukungqubana. I-diffusion ingasebenza kwii-gases nakwii-liquids. Nantsi inxalenye yemizekelo ye-diffusion: