Question

Compare solid, liquid, and gases with respect to:

(a) arrangement of particles

(b) inter-molecular space

(c) density

Answer 1

(a) Step: 1: Arrangement of particles:

Solids have the most organized intermolecular arrangement, whereas the arrangement of particles is less ordered in the liquid state. However, there is no order in the gaseous state. This order is because of the intermolecular force of attraction. The increasing order of arrangement of particles is: Gases < Liquids < Solids

(b) Step: 2: Inter-molecular space:

The space between the particles of a solid is called intermolecular space. As the molecules are tightly packed in solids and the space between them is very small, whereas in liquid it is more than solid and less than gases. Thus, increasing the order of intermolecular space is: a Solid < liquid < gases
(c) Step: 3: Density:

Density is defined as the amount of matter present in the unit volume of the body. As gases and liquids have the weaker intermolecular force of attraction. Thus, liquid and gas have a density less than solids. The increasing order of density is: Gases < Liquids < Solids