Question

Out of solid, liquid and gas

Which has least diffusion of the particles?

Answer 1

Matter

• Anything which can occupy space and has some mass which can be perceived by senses like touch, see, smell etc..,
• Matter mainly exist in solid, liquid and gaseous state

Diffusion: The movement of molecules from higher concentration to lower concentration

Solid state

• The molecules are closely packed, so that the interpartcle space is least
• The interparticle space is least so the particle motion is restricted or least
• Diffusion is less
• It has a definite shape and volume
• Example: ice

Liquid state

• The molecues are less closely packed compared to solid state
• The inte particle space is larger comaperd to solid state so the particle motion will be higher compaerd to solid state
• Diffusion will be higher compared to solid state
• Examples for diffusion of liquids are mixing of ink particles in water
• It has a definite volume but takes the shape of container it occupies
• Example: water

Gaeous state

• The molecules are loosely packed compared to liquid and solid state
• The inter particle space is largest so the particle motion will be higher
• Due to higher particle motion, they easily occupy the space provided, i.e they undergo diffusion easily.
• Examples for diffusion of gases is aroma of foods, agarbathis etc..,
• It has no definite shape and volume
• Example: water vapour

Therefore, solid particles have least diffusion