Question

Justify the statement that physical changes can be reversible as well as irreversible?

Answer 1

Physical changes can be both reversible or irreversible in the following sense:

-When you melt wax, you can easily reverse this by cooling the wax to get solid wax.
-An example of physical irreversible reaction, is breaking of glass

Answer 2

when water is frozen into ice,it is a physical change.It is reversible since ice can be converted to water again.