Identify the intensive quantity from the following

Options

A. enthalpy
B. temperature
C. volume
D. refractive index

Explanation

To identify the intensive quantity from the given options, we will follow these steps:

### Step 1: Understand the Definitions
- **Intensive Properties**: These are properties that do not depend on the amount of substance present. Examples include temperature, pressure, density, and refractive index.
- **Extensive Properties**: These are properties that depend on the amount of substance present. Examples include mass, volume, and total energy.

### Step 2: Analyze the Given Options
We need to evaluate the properties provided in the question to determine which are intensive and which are extensive.

### Step 3: Identify Intensive Properties
1. **Temperature**: This is an intensive property because it does not change with the size of the sample.
2. **Refractive Index**: This is also an intensive property as it remains constant regardless of the amount of material.
3. **Enthalpy**: This is an extensive property because it depends on the amount of substance.
4. **Volume**: This is an extensive property as it changes with the amount of substance.

### Step 4: Conclusion
From the analysis, the intensive properties identified are:
- Temperature
- Refractive Index

Thus, the correct answer to the question is that the intensive quantities are **Temperature and Refractive Index**.

---