Which of the following has the largest molar entropy? A) H₂(g) B) KF(aq) C) CO₂(s) D) CaO(s) E) He(l)

Question

Quizplus · Accepted Answer

The molar entropy of a substance depends on its molecular complexity, freedom of motion, and number of particles. Among the given options, KF(aq) has the largest molar entropy because it is a fully dissociated ionic compound, and each particle in the solution (K+ and F-) can move freely. The other options are either pure solids or pure gases, which have lower molar entropy due to fewer degrees of freedom of motion or fewer particles.

Which of the Following Has the Largest Molar Entropy