Gases are more dense than liquids or solids.

Question

BlackTom AI · Accepted Answer

Restating the question and options: The statement given is: 'Gases are more dense than liquids or solids.' The answer choices are: True; False.
Option 1: True. Reasoning: Gases are not more dense than liquids or solids under ordinary conditions. In fact, gases have much lower densities because their particles are far apart and move freely, occupying the volume of the container. This leads to densities typically around 0.001 g/mL (at standard conditions for air, about 0.0012 g/mL), which is far less than the densities of liquids (roughly 1 g/mL for water) and solids (often 2–10 g/mL or more for many common solids). Therefore, describing gases as more dense than liquids or solids is incorrect. 
Option 2: False. Reasoning: This statement correctly reflects the general physical fact that gas-phase substances have far lower density than liquids and solids because gas particles are highly spread out and compressible. Even when compressed or cooled, gases can reach higher densities, but even then they are typically less dense than liquids or most solids at standard conditions. The assertion in this option aligns with fundamental concepts of density and states of matter. 
Summary of incorrectness of Option 1 and correctness of Option 2: The falsehood of the claim in Option 1 stems from neglecting the enormous volume expansion and low particle concentration in gases compared with liquids and solids. The correctness of Option 2 comes from recognizing that density differences across states of matter are rooted in intermolecular spacing and phase behavior, with gases being the least dense under ordinary conditions. 
Thus, evaluating the statements shows that the claim in Option 1 is incorrect while the claim in Option 2 accurately captures the density relationship between gases, liquids, and solids.

Math & Science Prep Program Science Basics Quiz

Gases are more dense than liquids or solids.

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