Question

Out of solid, liquid and gas

Which has maximum particle motion?

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.

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.
• It has a definite shape and volume.
• Example: ice

Liquid state

• The molecues are less closely packed compared to solid state.
• The inter particle space is larger comaperd to solid state so the particle motion will be higher compaerd to solid state
• 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.
• Diffusion: The movement of molecules from higher concentration to lower concentration
• It has no definite shape and volume
• Example: water vapour

Therefore, gaseous state has high particle motion