IS IT CORRECT TO SAY THAT ALL PHYSICAL CHANGES ARE REVERSIBLE? WHY ? JUSTIFY BY GIVING EXAMPLES
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Answered by
30
usually
For example, if you melt ice, that's a physical change. To undo it, all you have to do is refreeze the water.
Some physical changes may be tougher to undo than others. For example, if you grind glass into a powder, it's possible to melt and reform it into its original size, but it's not very easy.
For example, if you melt ice, that's a physical change. To undo it, all you have to do is refreeze the water.
Some physical changes may be tougher to undo than others. For example, if you grind glass into a powder, it's possible to melt and reform it into its original size, but it's not very easy.
Answered by
22
No, I don't think 'all' physical changes are reversible.
All reversible changes are physical
As they cannot be chemical
But all physical changes are not reversible
Example : When you tear a page. It surely is irreversible but is it chemical?
No. It is not chemical. It is physical change and irreversible change
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