If a capillary tube is immersed at first in cold water and then in hot water, the height of capillary rise will be smaller in the second case. How can this be explained?

Explanation

To explain why the height of capillary rise is smaller in hot water compared to cold water, we can analyze the situation step by step using the principles of capillarity.

### Step-by-Step Solution:

1. **Understanding Capillary Action**:
- Capillary action is the ability of a liquid to flow in narrow spaces without the assistance of external forces. It occurs due to the interplay of cohesive forces (between liquid molecules) and adhesive forces (between liquid molecules and the surface of the tube).

2. **Formula for Capillary Rise**:
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