Question

Sometimes in very cold places, water pipes burst. Give reason why.
Do all changes involve exchange of energy? Give examples to support your answer​

Answer 1

Answer:

it is all because of the anomulous expansion of water

Explanation:

example is given in the question itself

Answer 2

Answer:

in cold places water pipes burst as water is freezed as ice and solid exerts more pressure than liquid thus ice causes pipe to burst

Explanation:

yes all changes involve exchange of energy

ex:- burning of paper causes potential energy of paper into light & heat energy