Question

Water changes shape to fill the shape of its container. What is the best explanation for this?

Answer 1

D. The molecules in water are constantly moving.

They are able to do this because they move around to take whatever shape of the container.

Answer 2

Answer: Option (A) is the correct answer.

Explanation:

Properties which are unable to bring any change in chemical composition of a substance are known as physical properties.

For example, change in shape, size, mass, volume etc are all physical properties.

Since, water is a liquid and in liquids the molecules are held by less strong intermolecular forces of attraction as compared to solids. Due to which they are able to slide past each other.

Hence, liquids do not have a definite shape but they do have a definite volume as they occupy the volume of container in which they are placed.

Thus, we can conclude that the best explanation for water changes shape to fill the shape of its container is that it's a physical property of water.