Question

How will the solubility of a gas solute change if the pressure above the solution is reduced?

The limit of the gas's solubility will fluctuate.
The limit of the gas's solubility will stay the same.
The limit of the gas's solubility will decrease.
The limit of the gas's solubility will increase.

Answer 1

If the pressure above a solution containing a gas solute is reduced, the limit of the gas's solubility will decrease.

Answer 2

The limit of the gas's solubility will decrease.

Step-by-step explanation:

The solubility of a gas in a liquid is explained by Henry's law.

S = k . P

where,

S is the solubility of the gas

k is the Henry's constant (depends on each gas)

P is the partial pressure of the gas (at equilibrium with the pressure above the solution)

We can see that the solubility is directly proportional to the pressure. If the pressure is reduced, the solubility decreases.