During which of the following processes, does entropy decrease?
(A) Freezing of water to ice at 0°C
(B) Freezing of water to ice at -10°C
(C) N2(g) + 3H2(g) → 2NH3(g)
(D) Adsorption of CO(g) on lead surface
(E) Dissolution of NaCl in water
Choose the correct answer from the options given below:
During which of the following processes, does entropy decrease?
(A) Freezing of water to ice at 0°C
(B) Freezing of water to ice at -10°C
(C) N2(g) + 3H2(g) → 2NH3(g)
(D) Adsorption of CO(g) on lead surface
(E) Dissolution of NaCl in water
Choose the correct answer from the options given below:
Option 1 -
(A) and (E) only
Option 2 -
(A), (B), (C) and (D) only
Option 3 -
(A), (C) and (E) only
Option 4 -
(B) and (C) only
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1 Answer
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Correct Option - 1
Detailed Solution:The change in entropy for the following processes is negative (ΔS = -ve), indicating an increase in order:
Water (l) → Ice (s) at 0°C
H? O (l) → Ice (s) at -10°C
N? (g) + 3H? (g) → 2NH? (g)
Adsorption
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