The molar enthalpy of vaporosation of acetone is less than that of water. Why?
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=> Acetone does not have hydrogen bond.
=> Thus, intermolecular forces are comparatively weaker which makes it boil/evaporates fast.
=> Thus, reducing the molar enthalpy of vaporization.
=> Also, Acetone does not polar O-H bond contributing to low enthalpy.
=> Water has non-polar region and also has strong hydrogen bond.
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