Question 11.1.2: Relate enthalpy of vaporization to IMFs. The following infor......

General Chemistry [1096778]

Relate enthalpy of vaporization to IMFs.

The following information is given for two hydrocarbons, propane and hexane, at 1 atm:

C $_{3}$ H $_{8}$ (propane) $ΔH_{\text{vap}}$ = 19.0 kJ/mol
C $_{6}$ H $_{14}$ (hexane) $ΔH_{\text{vap}}$ = 28.9 kJ/mol

Which hydrocarbon has stronger IMFs?

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You are asked to determine the relative strength of IMFs in two hydrocarbons.
You are given the enthalpy of vaporization for the two hydrocarbons.
The magnitude of the enthalpy of vaporization is a direct indication of the strength of the IMFs in the liquid. The enthalpy of vaporization for hexane is greater than that of propane, so the IMFs in hexane are stronger.

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