What is the effect of temperature on surface tension?

Explanation

### Step-by-Step Solution:

1. **Understanding Surface Tension**:
- Surface tension is defined as the force per unit length acting at the surface of a liquid. It is a measure of the cohesive forces acting between liquid molecules at the surface.

2. **Effect of Temperature on Surface Tension**:
- As the temperature of a liquid increases, the kinetic energy of its molecules also increases. This increased kinetic energy allows the molecules to overcome some of the cohesive forces that hold them together at the surface.

...