Temperature and heat are not :-

Options

A. Extensive properties
B. Intensive properties
C. Intensive and extensive properties respectively
D. Extensive and intensive properties respectively

Answer

To solve the question "Temperature and heat are not:", we need to identify whether temperature and heat are extensive or intensive properties.

### Step-by-Step Solution:

1. **Define Extensive and Intensive Properties**:
- **Extensive Properties**: These are properties that depend on the amount of matter present in a system. Examples include mass, volume, and total energy.
- **Intensive Properties**: These are properties that do not depend on the amount of matter present. They are characteristic of the substance itself. Examples include temperature, pressure, and density.

2. **Analyze Temperature**:
- Temperature is a measure of the average kinetic energy of the particles in a substance. It does not change with the amount of substance present. Therefore, temperature is an **intensive property**.

3. **Analyze Heat**:
- Heat is the energy transferred between substances due to a temperature difference. While the total amount of heat can depend on the amount of substance (for example, more substance can absorb more heat), the temperature at which the heat is measured does not depend on the quantity of the substance. However, heat itself is often considered an extensive property because it can vary with the amount of substance.

4. **Conclusion**:
- Since the question asks what temperature and heat are not, we conclude that both temperature and heat are not extensive properties. However, temperature is definitively an intensive property, while heat can be considered extensive.

Thus, the answer to the question is: **Temperature and heat are not extensive properties; they are intensive properties.**