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Chemistry · PYQ NEET UG 2024
हिन्दीIn which of the following processes entropy increases?\nA. A liquid evaporates to vapour.\nB. Temperature of a crystalline solid lowered from 130 K to 0 K.\nC. \( 2 \text{NaHCO}_{3(s)} \rightarrow \text{Na}_2\text{CO}_{3(s)} + \text{CO}_{2(g)} + \text{H}_2\text{O}_{(g)} \)\nD. \( \text{Cl}_{2(g)} \rightarrow 2 \text{Cl}_{(g)} \)\nChoose the correct answer from the options given below:
View Answer & Solution
Correct answer · Option A
A, C and D
Explanation
Entropy increases when randomness increases: liquid to vapour (A), solid decomposition to form gases (C), and dissociation of gas molecules into atoms (D). Lowering temperature (B) decreases molecular motion, decreasing entropy.
