Phase changes are accompanied with optical contrast and therefore the feasibility of phase.
explain why phase changes are reversible for solid to liquid and gas to liquid
See "Related Questions". Phase changes are reversible by adding or subtracting heat. In many cases chemical changes are not easily reversed.
Unicorns
yes , all the physical changes are reversible changes.
physical changes are sometimes reversible
All physical changes are reversible.
no
No, it is not.
chemical reactions are irreversible but physical changes are reversible
A reversible change is where like if you had some ice, you could melt and then change it back to ice again making it a reversible. An irreversible change is something that can't be reversed, like burning food, as you cannot unburn it. Hope I helped!
Is a changes which is reversible no new substance is made.
freezing is reversible because you can melt whatever it is you froze can't you