You Are Given Pure Samples of Pentane, CH₃CH₂CH₂CH₂CH₃(l), and 1,3-Pentadiene

Multiple Choice

You are given pure samples of pentane, CH₃CH₂CH₂CH₂CH₃(l) , and 1,3-pentadiene, CH₂=CHCH=CHCH₃(l) . What prediction would you make concerning their standard molar entropies at 298 K?

A) S° _pentane > S° _{1, 3-pentadiene}
B) S° _pentane < S° _{1, 3-pentadiene}
C) S° _pentane ≈ S° _{1, 3-pentadiene}
D) S° _pentane = S° _{1, 3-pentadiene} + 2 S°H ₂
E) More information is needed to make reasonable predictions.