Draw a picture representing particles present in the following: (i) Aluminium foil (ii) Glycerin (iii) Methane gas
Draw closely packed particles arranged in a regular pattern with minimum spacing between them. Particles should be shown in fixed positions, representing the solid state with strong interparticle attractions.
Draw particles slightly farther apart than in solids, arranged somewhat irregularly. Particles should be shown able to move past each other but within a limited space, representing the liquid state.
Draw particles far apart from each other with maximum spacing, scattered randomly. Particles should be shown moving freely in all directions, representing the gaseous state with negligible interparticle attractions.
Explanation
(i) Aluminium foil is a solid. The chapter states that in solids, particles are tightly packed with minimum interparticle spacing and maximum interparticle attraction. (ii) Glycerin is a liquid. The chapter states that in liquids, particles have slightly more spacing than solids with weaker interparticle attractions, allowing movement within limited space. (iii) Methane is a gas. The chapter states that in gases, particles have maximum interparticle spacing with negligible interparticle attraction, moving freely in all available space.