Please explain the underlined line

Please explain the underlined line a •uvung system'. I-httusionjs qbygpys in gases solids rather than of Diffusion is very i' for •aseous

Please find this answer

  • -1
I don't know
  • -1
Diffusion means somewhat kind of mixing of substances so therefore mixing of solids is not more likely than mixing a substance in solid 
  • 2
mixing of two substanses
  • -1
What are you looking for?