Which of the following reactions would be expected to provide a negative change in entropy , D S
I. 2 K (s) + F₂ (g) →2 KF (s)
II. 2 NO₂ (g) →N₂O₄ (g)
III. NaClO₃ (s) →Na⁺ (aq) + ClO₃^{1 -} (aq)

Question

Quizplus · Accepted Answer

Reactions I and II both result in a decrease in the number of gas molecules, leading to a decrease in entropy. Reaction III involves the dissolution of a solid into ions in solution, which typically increases entropy.

Which of the Following Reactions Would Be Expected to Provide