Solubility of Gases in Water Quiz

What does the graph show about the solubility of gases in water?

• Only oxygen is soluble in water

• All gases are insoluble in water

• All gases are soluble in water

• Only nitrogen is soluble in water

Answer explanation

The graph shows that all gases are soluble in water.

How does the solubility of gases change with an increase in temperature?

• It depends on the type of gas

• It remains constant

• It decreases

• It increases

Answer explanation

The solubility of gases decreases with an increase in temperature.

What is the main reason for gases to dissolve in water?

• Ionic bonding between water molecules

• Hydrogen bonding between water molecules

• Covalent bonding between water molecules

• Van der Waals forces between water molecules

Answer explanation

Gases dissolve in water mainly due to hydrogen bonding between water molecules.

Which gas makes up about 78 percent of air?

• Oxygen

• Carbon dioxide

• Methane

• Nitrogen

Answer explanation

Nitrogen makes up about 78 percent of air. It is the correct choice.

What happens to the solubility of nitrogen in water when the temperature is increased?

• It decreases

• It increases

• It depends on the pressure

• It remains constant

Answer explanation

The solubility of nitrogen in water decreases when the temperature is increased.

What effect does increasing the temperature have on the nitrogen molecules dissolved in water in the simulation?

• It has no effect

• It forces much of the nitrogen out of the liquid

• It increases the solubility of nitrogen

• It causes the nitrogen to bond with water molecules

Answer explanation

Increasing the temperature forces nitrogen out of the liquid, decreasing its solubility.

What happens to the solubility of oxygen as the temperature increases?

• It increases

• It decreases

• It depends on the pressure

• It remains constant

Answer explanation

As temperature increases, the solubility of oxygen decreases. This is because gases are less soluble in water at higher temperatures.

What type of bonding do water molecules have with each other?

• Ionic bonding

• Van der Waals forces

• Covalent bonding

• Hydrogen bonding

Answer explanation

Water molecules have hydrogen bonding with each other.

What is the percentage of oxygen in air?

• 0.04%

• 1%

• 21%

• 78%

Answer explanation

The correct answer is 21%. Oxygen makes up approximately 21% of the air we breathe.

What is the general trend for the solubility of gases as the temperature increases?

• It depends on the type of gas

• It remains constant

• It increases

• It decreases

Answer explanation

The solubility of gases generally decreases as temperature increases.