Paper recycling is also an irreversible process. This is because we do get paper on paper recycling but it is not the same original paper was used. The colour and texture of the paper changes.
Question
Tearing of paper is said to be a change that cannot be reversed. What about paper recycling?
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💡 Some Related Questions
Paheli mixed flour and water and (i) made a dough (ii) rolled the dough to make a chapati (iii) baked the chapati on a pan. (iv) dried the chapati and ground it in a grinder to make powder. Identify the changes (i) to (iv) as the changes that can be reversed or that cannot be reversed.
Open Answer »Give one example in each case. (i) Change which occurs on heating but can be reversed. (ii) Change which occurs on heating but cannot be reversed. (iii) Change which occurs on cooling but can be reversed. (iv) Change which occurs on mixing two substances, but can be reversed. (v) Change which occurs on mixing two substances, but cannot be reversed.
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