Question

why does water bead up on a freshly waxed car? adhesion cohesion heat capacity density

Explanation:

To determine why water beads up on a freshly waxed car, we analyze the concepts:

• Adhesion: Attraction between different substances. If adhesion were strong, water would spread, not bead.
• Cohesion: Attraction between same - type molecules (water - water here). Wax is non - polar and repels polar water. So water molecules stick to each other (cohesion) more than to wax, forming beads.
• Heat capacity: Relates to heat absorption/storage, not beading.
• Density: Relates to mass/volume, not beading.

Answer:

cohesion