In which of the given process does the entropy decrease?

3 O_{2} (g) ⟶ 2 O_{3} (g)

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Boiling of an egg

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2 S O_{3} (g) ⟶ 2 S O_{2} (g) + O_{2} (g)

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N H_{4} C l (s) ⟶ N H_{3} (g) + H C l (g)

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Solution

The correct option is A $3 O_{2} (g) ⟶ 2 O_{3} (g)$
Entropy is measure of randomness:
a) Here 3 $O_{2}$ molecules giving 2 $O_{3}$ molecules. Thus the entropy will decrease.
(b) Boiling of egg increases its entropy because of the denaturation of proteins.
c) Here two $S O_{3}$ molecules decompose to give two $S O_{2}$ molecules and one $O_{2}$ molecule. Thus the entropy increases.
d) Here the entropy will increase as gases are being formed from a solid.

Suggest Corrections

Similar questions

C a C O_{3} (s) \to C a O (s) + C O_{2} (g)

N_{2} (g) + 3 H_{2} (g) \to 2 N H_{3} (g)

H C l (g) + N H_{3} (g) \to N H_{4} C l (s)

2 S O_{2} (g) + O_{2} (g) \to 2 S O_{3} (g)

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C a C O_{3} (s) \to C a O (s) + C O_{2} (g)

N_{2} (g) + 3 H_{2} (g) \to 2 N H_{3} (g)

H C l (g) + N H_{3} (g) \to N H_{4} C l (s)

2 S O_{2} (g) + O_{2} (g) \to 2 S O_{3} (g)

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{N H}_{3} (g) + H C l (g) ⟶ {N H}_{4} C l (s)

A g (a q) + C l (a q) \to A g C l (s)

N H_{4} C l (s) \to N H_{3} (g) + H C l (g)

2 N H_{3} (g) \to N_{2} (g) + 3 H_{2} (g)

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