Two lakes, A&B are identical in all aspects except that lake A has higher temperature. Which of the following is true?

Options

A. A has higher rate of Oxygen dissolution
B. B has higher rate of Oxygen dissolution
C. Oxygen dissolution of both is the same
D. Both have same BOD

Answer

To solve the question regarding the two lakes, A and B, we need to analyze the impact of temperature on the dissolution of oxygen in water based on Henry's Law.

### Step-by-Step Solution:

1. **Understanding the Question**: We have two lakes, A and B, that are identical in every aspect except for the temperature. Lake A has a higher temperature than Lake B.

2. **Applying Henry's Law**: According to Henry's Law, the solubility of a gas in a liquid is inversely related to the temperature of the liquid. This means that as the temperature of the liquid increases, the solubility of the gas (in this case, oxygen) decreases.

3. **Comparing Lakes A and B**:
- Since Lake A has a higher temperature, the rate of oxygen dissolution in Lake A will be lower compared to Lake B.
- Conversely, since Lake B has a lower temperature, it will have a higher rate of oxygen dissolution.

4. **Conclusion**: Based on the application of Henry's Law, we can conclude that Lake B, which has a lower temperature, will have a higher rate of oxygen dissolution compared to Lake A.

5. **Final Answer**: Therefore, the correct statement is that Lake B has a higher rate of oxygen dissolution.