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During which of the following processes,...

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 ) `N_(2)(g)+3H_(2)(g) to 2NH_(3)(g)`
(D) Adsorption of CO(g) on lead surface.
(E ) Dissolution of NaCl in water
Choose the correct answer from the options given below:

A

(A), (C) and (E) only

B

(A), (B), (C) and (D) only

C

(A) and (E) only

D

(B) and (C) only

Text Solution

Verified by Experts

The correct Answer is:
B
(A) Water `overset(0^@C) to` ice, `DeltaS = -ve`
(B) Water `overset(10^@C)to` ice, `DeltaS = - ve`
(C )` N_2 (g) + 3H_2(g) to 2NH_3(g) , DeltaS = -ve`
(D) Adsorption , `DeltaS = -ve`
(E) `NaCl(s) to Na^(+) (aq) + Cl^(-)(aq), DeltaS =+ve`.
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