Chemistry Practice Problems Clausius-Clapeyron Equation Practice Problems Solution: Four alcohols have the formula C4H9OH:1-butanol, 2...

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# Solution: Four alcohols have the formula C4H9OH:1-butanol, 2-butanol (or sec-butanol), isobutanol (or 2-methyl-1-propanol), and tert-butanol (or 2-methy;-2-propanol).They are examples of isomers, or compounds that have the same molecular formula but different molecular structures. The below table gives data on the isomers:Using the Clausius-Clapeyron equation, rank the isomers of butanol in order of decreasing vapor pressure at 25 °C. Does the ranking agree with any conventional wisdom based on the ΔvapH Values or the normal boiling points?

###### Problem

Four alcohols have the formula C4H9OH:

1-butanol, 2-butanol (or sec-butanol), isobutanol (or 2-methyl-1-propanol), and tert-butanol (or 2-methy;-2-propanol).

They are examples of isomers, or compounds that have the same molecular formula but different molecular structures. The below table gives data on the isomers:

Using the Clausius-Clapeyron equation, rank the isomers of butanol in order of decreasing vapor pressure at 25 °C. Does the ranking agree with any conventional wisdom based on the ΔvapH Values or the normal boiling points?

Clausius-Clapeyron Equation

Clausius-Clapeyron Equation

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