Maximum temperature provided by liquid helium is 

Options

A. 0 K
B. 2.2 K
C. 4.2 K
D. 11.2 K

Answer

To solve the question regarding the maximum temperature provided by liquid helium, we will follow these steps:

### Step-by-Step Solution:

1. **Understand the Properties of Liquid Helium**:
- Liquid helium is known for its very low boiling point.

2. **Identify the Boiling Point of Liquid Helium**:
- The boiling point of liquid helium is approximately -268.93 °C.

3. **Convert the Boiling Point to Kelvin**:
- To convert Celsius to Kelvin, we use the formula:
\[ K = °C + 273.15 \]
- Applying this to the boiling point of helium:
\[ K = -268.93 + 273.15 = 4.22 \text{ K} \]
- This rounds to approximately 4.2 K.

4. **Conclusion**:
- The maximum temperature that can be provided by liquid helium is 4.2 K.

### Final Answer:
The maximum temperature provided by liquid helium is **4.2 Kelvin**.

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