Why do fish die when placed in a tank filled with water that has been boiled and then cooled?

Verified step by step guidance

Understand that boiling water removes dissolved gases, including oxygen, which is essential for fish survival.

Recognize that when water is boiled, the dissolved oxygen is driven out of the water as the temperature increases.

Note that even after the water is cooled, the dissolved oxygen levels remain low because the gases do not readily re-dissolve back into the water.

Consider that fish rely on dissolved oxygen in the water to breathe through their gills.

Conclude that without sufficient dissolved oxygen, fish cannot survive, leading to their death in such an environment.

Previous problem

Next problem

Related Practice

Textbook Question

A KNO₃ solution containing 45 g of KNO₃ per 100.0 g of water is cooled from 40 °C to 0 °C. What happens during cooling? (Use Figure 13.11.)

2257

views

Textbook Question

A KCl solution containing 42 g of KCl per 100.0 g of water is cooled from 60 °C to 0 °C. What happens during cooling? (Use Figure 13.11.)

2623

views

Open Question

Why do some laboratory procedures involving oxygen-sensitive reactants or products call for using water that has been boiled and then cooled?

Open Question

Scuba divers breathing air at increased pressure can suffer from nitrogen narcosis—a condition resembling drunkenness—when the partial pressure of nitrogen exceeds about 4 atm. What property of gas-water solutions causes this to happen? How can a diver reverse this effect?

Textbook Question

Scuba divers breathing air at increased pressure can suffer from oxygen toxicity—too much oxygen in their bloodstream— when the partial pressure of oxygen exceeds about 1.4 atm. What happens to the amount of oxygen in a diver's bloodstream when he or she breathes oxygen at elevated pressures? How can this be reversed?

1101

views

Open Question

Calculate the mass of nitrogen dissolved at room temperature in an 80.0-L home aquarium, assuming a total pressure of 1.0 atm and a mole fraction for nitrogen of 0.78.