Question Detail
Question
Compared to a liquid with a large contact angle, a liquid with a smaller contact angle on a given solid surface will exhibit which of the following?
Correct Answer
Option A is the correct answer.
Detailed Explanation
The degree of wetting is inversely related to the contact angle. A smaller contact angle means the liquid spreads out more on the surface, indicating a greater degree of wetting. A contact angle of 0° corresponds to perfect wetting.
Hint
Think of water on a clean glass surface (small angle, high wetting) versus water on a waxed surface (large angle, low wetting).