Which of the following is an example of intensive property?

Options

A. Enthalpy
B. Energy
C. Mass of substance
D. Surface tension

Answer

To determine which of the following is an example of an intensive property, we first need to understand what intensive properties are. Intensive properties are those that do not depend on the amount of substance present. They remain constant regardless of how much of the substance you have.

### Step-by-Step Solution:

1. **Define Intensive Properties**:
- Intensive properties are characteristics of a substance that do not change with the quantity of the substance. Examples include temperature, pressure, density, and surface tension.

2. **Identify the Options**:
- In the context of the question, we need to analyze the given options (which are not provided here) to identify which one is an intensive property.

3. **Analyze Each Option**:
- For each option, determine whether it is dependent on the amount of substance or not:
- **Enthalpy**: This is a measure of energy in a system and depends on the amount of substance present. Therefore, it is not an intensive property.
- **Kinetic Energy**: This also depends on mass and velocity, hence it is not an intensive property.
- **Surface Tension**: This property describes the elastic tendency of a fluid surface and does not depend on the amount of fluid present. Thus, it is an intensive property.

4. **Conclusion**:
- Based on the analysis, the correct answer is the property that does not depend on the quantity of matter. In this case, surface tension is identified as the intensive property.

### Final Answer:
The example of an intensive property is **Surface Tension**.