Which of the following straight chain molecules has the greatest standard molar entropy at 25°C?

Question

Quizplus · Accepted Answer

The molar entropy of a substance increases with its molecular complexity and therefore the number of its possible configurations. As the number of carbon atoms in the chain increases, the number of possible configurations increases faster than the number of atoms, leading to a higher standard molar entropy. Therefore, among the given molecules, the one with the longest chain (C12) would have the highest standard molar entropy. Option C has the longest chain, and therefore has the greatest standard molar entropy at 25°C.

Which of the Following Straight Chain Molecules Has the Greatest