Liquid flow from a higher to a level .Which of the following liquids can climb up the wall of the glass vessel in which it is placed ?

Options

A. Alcohol
B. Liquid He
C. Liquid`N_(2)`
D. water

Answer

To determine which liquid can climb up the wall of a glass vessel, we need to consider the molecular mass of the liquids provided in the options. The ability of a liquid to climb up the walls of a container is influenced by its surface tension and adhesive properties, which are often related to its molecular mass.

### Step-by-Step Solution:

1. **Understanding the Concept**:
- Liquids can flow from a higher level to a lower level due to gravity. However, some liquids can also climb up the walls of a container due to adhesive forces that exceed the cohesive forces within the liquid.

2. **Analyzing the Given Options**:
- The liquids provided are:
- Alcohol (C2H5OH) - Molecular mass = 46 g/mol
- Liquid Helium (He) - Molecular mass = 4 g/mol
- Liquid Nitrogen (N2) - Molecular mass = 28 g/mol
- Water (H2O) - Molecular mass = 18 g/mol

3. **Comparing Molecular Masses**:
- We need to identify which of these liquids has the lowest molecular mass, as lower molecular mass is generally associated with higher mobility and better ability to climb up surfaces.
- The molecular masses are:
- Alcohol: 46 g/mol
- Liquid Helium: 4 g/mol
- Liquid Nitrogen: 28 g/mol
- Water: 18 g/mol

4. **Identifying the Liquid with Lowest Molecular Mass**:
- From the comparison, Liquid Helium has the lowest molecular mass (4 g/mol). This suggests that it has the highest potential to climb up the walls of the glass vessel due to its low mass and unique properties.

5. **Conclusion**:
- Therefore, the liquid that can climb up the wall of the glass vessel is **Liquid Helium (He)**.

### Final Answer:
**Liquid Helium (He)** can climb up the wall of the glass vessel.

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