Final answer:
In a 0.5 m³ tank containing a two-phase liquid in equal proportions, each phase would occupy 0.25 m³ (option A).
Step-by-step explanation:
The question you've asked relates to the volume occupied by two-phase liquid in a container. Specifically, we need to determine how much volume each phase occupies in a given total volume, in this case, a 0.5 m³ tank.
Without additional information on the proportion of the phases or specific characteristics of the liquid, a general assumption is that the two phases would divide the total volume equally if the question implies an equilibrium situation.
Therefore, if a tank has a volume of 0.5 m³ and it contains two phases of a liquid in equal proportion, then each phase would occupy half of the total volume.
The correct answer to the question, "What is the volume occupied by each phase?", would be: