When water is heated from `0^(@)C` to `10^(@)C`, the volume of water

Options

A. increases steadily
B. decreases steadily
C. first increases then decreases
D. first decreases then increases

Explanation

To solve the question regarding the volume of water when heated from \(0^\circ C\) to \(10^\circ C\), we will analyze the behavior of water's density and volume at different temperatures.

### Step-by-Step Solution:

1. **Understanding Density and Volume Relationship**:
- Density (\(D\)) is defined as mass (\(m\)) per unit volume (\(V\)):
\[ D = \frac{m}{V} \]
- This implies that if the mass of water remains constant, any change in volume will inversely affect the density.

2. **Behavior of Water from \(0^\circ C\) to \(4^\circ C\)**:
- Water has a unique property where its density is maximum at \(4^\circ C\).
- As water is heated from \(0^\circ C\) to \(4^\circ C\), the volume of water decreases because the density increases.

3. **Behavior of Water from \(4^\circ C\) to \(10^\circ C\)**:
- When water is heated from \(4^\circ C\) to \(10^\circ C\), the volume begins to increase again.
- This is because, as the temperature rises, the kinetic energy of water molecules increases, causing them to occupy more space, thus increasing the volume.

4. **Conclusion**:
- Therefore, when water is heated from \(0^\circ C\) to \(10^\circ C\), the volume first decreases as it approaches \(4^\circ C\) and then increases as it continues to \(10^\circ C\).
- The overall effect on volume is that it decreases initially and then increases, leading to a net increase in volume from \(0^\circ C\) to \(10^\circ C\).

### Final Answer:
The volume of water decreases from \(0^\circ C\) to \(4^\circ C\) and then increases from \(4^\circ C\) to \(10^\circ C\).