The following is/are extensive property/properties

Options

A. internal energy
B. temperature
C. concentration
D. heat capacity

Answer

To determine which of the given properties are extensive properties, we need to understand the definition of extensive properties and how they differ from intensive properties.

### Step-by-Step Solution:

1. **Definition of Extensive Properties**:
- Extensive properties are those that depend on the amount or mass of the substance present. Examples include mass, volume, internal energy, and heat capacity.

2. **Identify the Properties**:
- We need to analyze the properties given in the question:
- Internal Energy
- Temperature
- Concentration
- Heat Capacity

3. **Analyze Each Property**:
- **Internal Energy**:
- This property depends on the amount of substance. Therefore, it is an extensive property.
- **Temperature**:
- Temperature is independent of the amount of substance. It is a measure of the average kinetic energy of the particles and is classified as an intensive property.
- **Concentration**:
- Concentration is defined as the amount of solute per unit volume of solution. It is dependent on the quantity of solute, thus making it an extensive property.
- **Heat Capacity**:
- Heat capacity is the amount of heat required to change the temperature of a substance by one degree Celsius. It depends on the mass of the substance, so it is also an extensive property.

4. **Conclusion**:
- Based on the analysis, the extensive properties from the given list are:
- Internal Energy (extensive)
- Concentration (extensive)
- Heat Capacity (extensive)
- Temperature is not an extensive property.

### Final Answer:
The extensive properties are:
- Internal Energy
- Concentration
- Heat Capacity