How Do Windshield Coatings Improve Visibility in a Rainstorm

Lemon oil contains limonene or methyl-4-isopropenyl-1 -cyclohexene, as shown in Fig. 7.4.2. 

KEY TERMS dispersion forces nonpolar polarizability static electricity 

Aquapel Glass Treatment improves a driver s ability to see clearly and drive safer. This innovative technology is a long-lasting rain repellent. 

How can a product claim to improve your vision through an automobile windshield The chemical structure of the key ingredients in the formulation can ensure a clear view during a rainstorm. 

The manufacturers of windshield coatings take advantage of the fact that the hydrophilic substances possess chemical structures that permit favorable intermolecular interactions with water. Chemical species capable of exhibiting hydrogen bonding, dipole-dipole interactions, or ion-dipole interactions with water are typically hydrophilic substances. Alternatively, hydrophobic substances typically are nonpolar molecules that exhibit only weak van der Waals interactions with water. 

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Question 7.5 How Do Windshield Coatings Improve Visibility in a Rainstorm 87... 

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