Question

What is constraction and expansion in case of water

Answer 1

Explanation:

In terms of thermal expansion water shows a typical behaviour. It contracts on heating between 0 degree C and 4 degree C. The volume of given amount of water decreases as it is cooled from room temperature, until its temperature reaches 4 degree C. Below 4 degree C, the volume increases and density decreases.

Answer 2

Answer:

when water cools it contracts and when water heats it expands

Explanation:

cooling causes H2O molecules to come closer and form ice, while heating causes molecules to go farther away and forms vapour