Use the particle model of matter to explain why gases are less dense than solids and liquids?
The atoms and molecules in gases are muchmore spread out than in solids or liquids. They vibrate and move freely at high speeds. A gas will fill any container, but if the container is not sealed, the gas will escape. Gas can be compressed much more easily than a liquid orsolid.
Answers
Explanation:
the previous chapter we learnt that scientists use models when they want to describe things that are difficult to understand. We discussed a model of the atom that helped us to imagine what atoms look like.
This model of the atom shows us where the different sub-atomic particles can be found. The sub-atomic particles shown here are the proton, neutron and electron.
Theories are similar to models. They explain scientific phenomena (things and events that can be described and explained in scientific terms) using pictures and words.
What does the particle model of matter teach us?
The particle model describes matter in a very specific way. It describes four important aspects of matter:
All matter is made up of particles that are incredibly small - much too small to see with the naked eye. The particles can be atoms or combinations of atoms that are bonded.
There are forces between the particles.
The particles in matter are always moving. The more energy they have, the faster they move.
The spaces between the particles in matter are empty. You might assume that the spaces between particles are filled with air, but this is not the case. They contain nothing at all.
Answer:
Gases are less dense than solids and liquids
Explanation:
Gases are less dense than solids and liquids because their molecules are far apart in comparison to solids and liquids. This greatly affects the mass of gases. Density is
volume/mass. The greater the volume/mass , the more dense the material is. Because the molecules of a gas are spread apart, they have the least volume/mass , and are therefore less dense.