During warmer parts of the day, fish will be found in deeper waters of a lake. Which statement best explains this phenomena with respect to the solubility of a gas?
A.
Gases are more soluble at low pressures.
B.
Gases are more soluble at high pressures.
C.
Gases are more soluble at low temperatures.
D.
Gases are more soluble at high temperatures
C.
Gases are more soluble at low temperatures.
C. Gases are more soluble at low temperatures.
To explain why fish are found in deeper waters during warmer parts of the day with respect to the solubility of gases, we need to understand how temperature affects the solubility of gases in water.
The best answer is C. Gases are more soluble at low temperatures.
When the temperature of a liquid, such as water, increases, the solubility of gases in that liquid decreases. This means that at higher temperatures, gases tend to come out of solution and be released into the air more easily.
During warmer parts of the day, the temperature of the water in the lake increases. As a result, the solubility of gases, such as oxygen, in the water decreases. Fish need oxygen to survive, so they tend to move to deeper waters, where the temperature is lower.
In deeper waters, the temperature is generally cooler because sunlight has less impact due to the greater depth. The cooler temperatures in the deeper waters help to maintain a higher concentration of dissolved oxygen, making it a more suitable environment for fish.
Therefore, option C is the correct explanation: Gases are more soluble at low temperatures.