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Amongst the following the total no.of reactions processes in which the entropy increases

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desalination of water

A liquid crystallises into solid

Hard boiling of an egg

${NH}_{3} (1 atm) \to {NH}_{3} (10 atm)$

answer is B.

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Detailed Solution

Entropy of solids is less than that of liquid.

Boiling of egg leads to denaturation of proteins which in turn increases entropy.

Desalination of water means removal of dissolved salts and so entropy decreases.

Decrease in pressure leads to increase in entropy.

Decrease in temperature leads to decrease in entropy.

In a chemical process if the number of gaseous moles increases then entropy increases.

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