Question

which low - energy state of condensed matter is characterized by structural rigidity and resistance to changes of shape or volume?
○ gas
○ liquid
○ plasma
○ solid

Explanation:

To solve this, we analyze the properties of each state of matter:

• Gas: Has no fixed shape or volume, expands to fill its container.
• Liquid: Has a fixed volume but takes the shape of its container, no structural rigidity.
• Plasma: Is an ionized gas, similar to gas in lacking fixed shape/volume.
• Solid: Has a fixed shape and volume, with structural rigidity (particles are closely packed and held in a fixed arrangement, resisting changes to shape or volume).

Answer:

D. solid