How does temperature affect oxygen solubility in water?

The correct answer highlights the relationship between temperature and the solubility of oxygen in water. As temperature rises, the solubility of oxygen in water decreases. This phenomenon occurs because warmer water has more kinetic energy, causing molecules to move more rapidly and effectively escape into the atmosphere rather than remaining dissolved in the water.

This principle is significant in environmental science and wastewater treatment because it affects aquatic life and the overall health of water bodies. Oxygen is essential for the survival of fish and other aquatic organisms, and a decrease in dissolved oxygen levels can lead to stress or death for these species.

In contrast, colder water holds more oxygen because the molecules are slower, allowing more oxygen to remain dissolved. This makes colder environments typically more suitable for fish and other organisms that rely on dissolved oxygen for respiration. Understanding how temperature influences oxygen levels is crucial for managing water quality and ensuring healthy ecosystems.