Which factor is NOT associated with the physical state of a substance at room temperature?

The physical state of a substance at room temperature—whether it is a solid, liquid, or gas—is primarily influenced by factors such as structure, molecular weight, and volume.

The shape of a substance is related to its physical appearance and how it occupies space, but it does not determine its state. Solids maintain a fixed shape, while liquids take the shape of their container, and gases expand to fill their container. Thus, shape is a characteristic of how a substance presents itself rather than a factor that affects its physical state under standard conditions.

On the other hand, structure influences how particles are arranged and held together, molecular weight has an impact on the kinetic energy of particles at a given temperature, and the volume is relevant since it indicates how a substance interacts with its environment in terms of state changes. These factors all contribute significantly to whether a substance behaves as a solid, liquid, or gas at room temperature.