The incorrect statement(s) among the following statements is/are -

(i) When liquid crystallizes into a solid, entropy increases

(ii) When the temperature of a crystalline solid is raised from 0 K to 115 K then entropy increases

 (iii) 2NaHCO3 (s)  Na2CO3 (s) + CO2(g) + H2O(g); Entropy  increases

(iv) H2(g)  2H(g); Entropy  decreases

1. (i), (iv)

2. (ii), (iv)

3. (iii), (iv)

4. (i), (iii)

Subtopic:  Spontaneity & Entropy |
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NEET 2023 - Target Batch - Aryan Raj Singh
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For oxidation of iron,

 4Fe(s) + 3O2(g)  2Fe2O3 (s)
entropy change is -549.4 JK-1 mol-1 at 298 K.

(rHΘ for this reaction is -1648 × 103 J mol-1)

The reaction is-

1. Spontaneous reaction

2. Non-spontaneous reaction

3. Reaction is an equilibrium

4. Cannot predict

Subtopic:  Spontaneity & Entropy |
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2023 - Target Batch - Aryan Raj Singh
Please attempt this question first.
Launched MCQ Practice Books

Prefer Books for Question Practice? Get NEETprep's Unique MCQ Books with Online Audio/Video/Text Solutions via Telegram Bot

NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology