In which of the following entropy increases?

NEET 2024 solution series
Question:In which of the following entropy increases?
A. A liquid evaporates to vapour.
B. A crystalline solid temperature is decreased from 130K to 0K
C. 2NaHCO3 -- Na2CO3+ CO2+H2O
D. Cl2---- 2Cl

the correct answer is
1. A and B
2. A, B and C
3. A,B and D
4. A,B,C and D



Answer is 3

solution: entropy is the measurement of randomness,so more is the random motion more is randomness
on increasing temperature random motion increases so randomness increases
in a reaction if number of gas moles increases randomness increases.

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