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Boiling points: Propanol: 97.1 oC Isopropanol: 82.3 oC So yes, propanol has a higher boiling point than isopropanol. Since both isomers can hydrogen bond, the difference may be due to the fact that propanol, due to its more linear shape, is able to pack more densely than isopropanol (as verified by propanol's density of 0.803 g/ml vs. isopropanol's 0.786 g/ml) and experience more London Dispersion forces.

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15y ago
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15y ago

because water has a higher specific heat than alcohol.

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12y ago

rubbing alcohol, isopropyl alcohol, boils faster at 82.3 C.

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10y ago

It doesn't boil faster for a given quantity of heat and volume of fluid, unless its latent heat of evaporation is less than that of water, but it boils at a far lower temperature.

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7y ago

Because the enthalpy of vaporization of 1-propanol is higher than the enthalpy of vaporization of water I suppose that water is faster evaporated.

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Q: Does rubbing alcohol or water boil faster?
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