A girl is making chapati. She did the following steps: Step 1: She added water, salt, and flour to make a dough. Step 2: She used a rolling pin to shape the dough. Which of these options correctly explains the changes?
a. Both the steps represent a reversible change
b. Both the steps represent an irreversible change
c. Step 1 is a reversible change and step 2 is an irreversible change
d. Step 1 is an irreversible change and step 2 is a reversible change
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Answer:
option d is the correct answer because dough cannot represent a reversible change but the shape of dough can represent a reversible change
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Option d Step 1 is an irreversible change and step 2 is a reversible change correctly explains the changes.
- She added water, salt, and flour to make a dough. She can't get back the salt, water and flour back so, this process is irreversible in nature.
- She used a rolling pin to shape the dough. Here she can again mix the shapes to get back the dough. So, this process is reversible.
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