Question

Is cutting or tearing of paper reversible or irreversible.
if reversible how can we reverse it?
Name the process and explain it.

Answer 1

Tearing of a paper is a reversible change because when paper is torn only the appearance of the paper is changed but at molecular level no change take place and no new substance formed so it is called reversible change.

Now take the example of burning of paper it is a irreversible change when paper is burnt the chemical composition of the paper is changed at the molecular level. Subsequently the paper is turned into ash this chemical change is am irreversible change. Hence burning of paper is a irreversible change and tearing of paper is reversible change.

So we can use fevicol or tape to join the parts of paper and we can reverse the process.