Question

Give some example of entropy change ?

Answer 1

Answer:

A pile of library books is placed in a neat stack on a shelf. A cyclist pedals harder while riding uphill. A deserted field becomes overgrown with weeds.

Explanation:

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Answer 2

$\huge\mathtt{\fbox{Example\:of \: entropy \:change:-}}$

1. In rusting of iron its entropy increases.

2. During dissolution of salt entropy increases.

$</strong><strong>N</strong><strong>h_{4} cl + aq - - - - - > </strong><strong>N</strong><strong>h_{4}(aq) + {cl}^{ - (aq)}$

3. during precipitation and crystallization entropy decreases. ( on addition of HCL in the aqueous solution of Ag+ ions entropy decrease due to precipitation of AgCl.)

4. On boiling of egg : denaturation of protein occur. thus entropy increases.

5. Stretching of rubber : during stretching of rubber band its long flexible macromolecules get uncoiled. thus uncoiled form has more specific geometry and more ordered arrangement. thus entropy decrease.

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