Question

List: motion, space, mass, molecule, elements, atom, shape, changes, cohesion, rigid, hard, adhesion, intermolecular

(x) As the position of the molecules of a liquid easily __________, therefore, they take the __________ of the containing vessel.

• A. changes
• B. shape

Answer 1

• In liquids, the molecules are less tightly packed.
• As the intermolecular spaces are large, therefore, molecules attract each other with a weaker force as compared to solids.
• Because of the weak forces of attraction, the molecules do not stay in one place.
• As the position of the molecules easily changes, therefore, they take the shape of the containing vessel.

Therefore, as the position of the molecules of a liquid easily changes, therefore, they take the shape of the containing vessel.