What occurs when the pressure of a gas in contact with a liquid is reduced?

When the pressure of a gas in contact with a liquid is reduced, bubbles may form depending on the extent of the pressure change. This phenomenon occurs due to the gas's decreased solubility in the liquid under lower pressure conditions, which can lead to the gas coming out of solution and forming bubbles.

If the pressure is significantly reduced, it may exceed the solubility limit of the gas in the liquid, resulting in the formation of bubbles as the gas escapes. However, if the pressure change is minimal, it might not be sufficient for bubble formation to occur.

The other options describe scenarios that do not accurately reflect the behavior of gases when pressure changes. For instance, the idea that bubbles will always form does not account for situations where the pressure change is not substantial enough. Similarly, stating that gas goes into solution indefinitely contradicts the principle of gas solubility, which is limited by pressure. The claim that the liquid will evaporate pertains more to the dynamics of the liquid itself rather than directly addressing the behavior of the gas in relation to pressure changes.