OnlineCBT
Chemistry · THERMODYNAMICS
हिन्दीConsider the following statements regarding entropy changes: (A) A liquid crystallizing into a solid results in an increase in entropy. (B) The entropy of a crystalline solid at \( 0\text{ K} \) is minimum. (C) In the decomposition \( 2\text{NaHCO}_3(s) \rightarrow \text{Na}_2\text{CO}_3(s) + \text{CO}_2(g) + \text{H}_2\text{O}(g) \), entropy increases. (D) For the atomization \( \text{H}_2(g) \rightarrow 2\text{H}(g) \), entropy decreases. Which of the above statements are correct?
Correct answer · Option 1
(B) and (C) only
Explanation
Crystallization decreases entropy (so A is false); atomization increases particle count and entropy (so D is false). Only (B) and (C) are correct.
