Question
Asked Feb 17, 2019
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The boiling points of the three different structural isomers of pentane (C5H12) are 9.5 C, 27.9 C, and 36.1 C. Draw their structures, and arrange in order of decreasing boiling points. Justify your arrangement.

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Expert Answer

Step 1

The 3 structural isomers of pentane are n-pentane, isopentane and neopentane. The structures of all three are given as,

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Step 2

Boiling point is inversely propotional to branching. Lesser the branching,more will be the boiling point. As the length of carbon chain increases, the surface area of the compound will also increase and Van der Waals force is propotional to surface area. Hence, the increase in the surface area increases the a...

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