What is the result of condensation in a gas?

Condensation refers to the process where gas transitions to a liquid state. This phenomenon occurs when the gas cools down, and the molecules lose kinetic energy, allowing intermolecular forces to draw them closer together, resulting in a liquid. As the gas cools, the temperature drops below its boiling point, leading to the accumulation of molecules in a liquid form.

In the context of the other options, while increasing pressure might influence condensation in some scenarios, it is not the direct result of the condensation process itself. Additionally, gas expansion typically occurs with heating and is not a feature of condensation. The idea of gas dissociating into ions pertains to processes like ionization, which is unrelated to the condensation process. Therefore, the result of condensation critically hinges on the cooling of the gas and its transformation into a liquid, confirming that the correct response is indeed that the gas cools down and becomes a liquid.