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You Are Given Pure Samples of Pentane,CH3CH2CH2CH2CH3(l),and 1,3-Pentadiene,CH2=CHCH=CHCH3(l) \approx S°(1,3-Pentadiene)
D)S°(pentane)= S°(1,3-Pentadiene)+ 2

Question 46

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 the standard molar entropies of pentane,S°(pentane) and 1,3-pentadiene,S°(1,3-pentadiene) ,at 298 K?


A) S°(pentane) > S°(1,3-pentadiene)
B) S°(pentane) < S°(1,3-pentadiene)
C) S°(pentane) \approx S°(1,3-pentadiene)
D) S°(pentane) = S°(1,3-pentadiene) + 2 ×\times S°(H2)
E) More information is needed to make reasonable predictions.

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