Question 1

According to Henry's Law, the solubility of a dissolved gas in a liquid is directly proportional to which of the following?

Accepted Answer

The partial pressure of that gas over the liquid

Question 2

Which equation best represents Henry's Law for the solubility of a gas?

Accepted Answer

$$C = k_H 	imes P$$

Question 3

If the pressure above a liquid is doubled, what happens to the solubility of a gas in that liquid according to Henry's Law?

Accepted Answer

It is doubled

Question 4

As the temperature of a liquid increases, what generally happens to the solubility of a gas in that liquid?

Accepted Answer

It decreases

Question 5

Which of the following best explains why carbonated beverages lose their fizz faster when left open at room temperature?

Accepted Answer

Higher temperature decreases the solubility of CO$$_2$$ gas

Question 6

A diver is breathing compressed air underwater. If the partial pressure of oxygen is increased, what happens to the amount of oxygen dissolved in the diver's blood?

Accepted Answer

It increases

Question 7

Which of the following statements is true regarding the solubility of most solids in water as temperature increases?

Accepted Answer

Solubility increases

Question 8

In a laboratory experiment, the solubility of a gas in water at 1 atm is 0.03 mol/L. What will be the solubility if the pressure is increased to 3 atm, assuming temperature is constant?

Accepted Answer

0.09 mol/L

Question 9

Which of the following is NOT a consequence of Henry's Law in real-world scenarios?

Accepted Answer

Salt dissolving in water

Question 10

A sealed bottle of soda is opened and left at room temperature. Which combination of changes will most rapidly decrease the solubility of CO$$_2 in $$the soda?

Accepted Answer

Decrease pressure and increase temperature

Question 11

Which of the following best describes the relationship between pressure and the solubility of a gas in a liquid?

Accepted Answer

Solubility is directly proportional to pressure

Question 12

If the temperature of water is increased from 20°C to 40°C, what is the expected effect on the solubility of oxygen gas in the water?

Accepted Answer

It will decrease

Question 13

Which of the following is a correct application of Henry's Law in medicine?

Accepted Answer

Administering oxygen at higher pressure to increase its solubility in blood

Question 14

A student claims that increasing the temperature will always increase the solubility of any substance in water. Which of the following best refutes this claim?

Accepted Answer

The solubility of gases in water decreases as temperature increases

Question 15

Which of the following will increase the solubility of NaCl in water?

Accepted Answer

Increasing the temperature

Question 16

Which of the following will increase the solubility of CH$$_4$$ gas in water?

Accepted Answer

Increasing the pressure above the solution

Question 17

A patient is placed in a hyperbaric oxygen chamber. What is the primary chemical principle that allows more oxygen to dissolve in the patient's blood?

Accepted Answer

Henry's Law: Solubility increases with increased partial pressure

Question 18

Which of the following best describes the effect of temperature on the solubility of most solids and gases in water?

Accepted Answer

Solubility of solids increases, solubility of gases decreases

Question 19

A soda manufacturer wants to maximize the amount of CO$$_2$$ dissolved in their drinks. Which combination of conditions should they use?

Accepted Answer

High pressure and low temperature

Question 20

Which of the following is a direct consequence of the pressure-solubility relationship described by Henry's Law?

Accepted Answer

Deep-sea fish have higher concentrations of dissolved gases in their bodies

Henry’s Law and Gas Solubility in Liquids

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