NEET 2025 Chemistry question
In which of the following processes entropy increases? A. A liquid evaporates to vapour. B. Temperature of a crystalline solid lowered from 130 K to 0 K. C. 2NaHCO_{3(s)}\rightarrow Na_2CO_{3(s)}+CO_{2(g)}+H_2O_{(g)} D. Choose the correct answer from the options given below:
Answer: (D)
Solution
Entropy rises on vaporisation, gas formation and increase in number of gas particles; cooling lowers it.