Heats of hydrogenation data would be useful in comparing the relative stabilities of which of the following substances?
A)I,II,III
B)III,IV
C)I,II,V
D)Heats of hydrogenation data would not be a useful way to compare relative stabilities of any of the substances.
E)All of these substances could effectively be compared using heats of hydrogenation data.

Question

Heats of hydrogenation data would be useful in comparing the relative stabilities of which of the following substances? 
A)I,II,III 
B)III,IV 
C)I,II,V 
D)Heats of hydrogenation data would not be a useful way to compare relative stabilities of any of the substances. 
E)All of these substances could effectively be compared using heats of hydrogenation data.

Quizplus · Accepted Answer

Heats of hydrogenation data are useful in comparing the relative stabilities of alkenes. Substance I, II, and V all contain a double bond and therefore can be compared. Substance III is an alkane and would not be useful in comparing relative stabilities using heats of hydrogenation. Substance IV contains a triple bond and would require a different type of data to compare its stability. Therefore, the best choice is C, which includes all three alkenes.

Heats of Hydrogenation Data Would Be Useful in Comparing the Relative