In thermodynamics, which one of the following properties is not an intensive property?

Options

A. Presssure
B. Temperature
C. Volume
D. Density

Answer

To determine which property is not an intensive property in thermodynamics, we first need to understand the definitions of intensive and extensive properties.

### Step-by-Step Solution:

1. **Define Intensive Properties**:
- Intensive properties are those that do not depend on the amount of substance present. They are characteristics of the material itself, regardless of how much of it you have. Examples include temperature, pressure, and density.

2. **Define Extensive Properties**:
- Extensive properties, on the other hand, depend on the quantity of matter present. Examples include mass, volume, and total energy.

3. **Analyze the Given Options**:
- The question provides several properties to evaluate. We need to identify which one is not intensive.
- Common properties to consider include:
- Pressure
- Temperature
- Volume
- Density

4. **Evaluate Each Property**:
- **Pressure**: This is an intensive property because it does not change with the amount of substance.
- **Temperature**: This is also an intensive property as it remains constant regardless of the quantity of the substance.
- **Volume**: This is an extensive property because it changes with the amount of substance present. The volume is the amount of space occupied by the substance, which directly relates to the quantity.
- **Density**: This is an intensive property because it is defined as mass per unit volume and does not change with the quantity of substance.

5. **Conclusion**:
- Based on the analysis, the property that is not an intensive property is **Volume**.

### Final Answer:
Volume is not an intensive property.