Solids and Plasma

Solids and Plasma
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  • Good morning folks! Yesterday we talked about the kinetic-molecular theory and how it applies to liquids. Today we will discussing the same thing in relation to solids and plasma.
  • Say if we were looking at the comparison of motion of the plasma in the sun, and the motion of particles in a solid. The particles in the plasma would move randomly, but the particles in the solid vibrate, and stay in one place.
  • Lets look at the specific properties of solids. A solid is a low-energy state of condensed matter that is characterized by structural rigidly and resistance to changes of shape or volume. First, when looking at a crystal for example, the repeating subunits that are responsible for the shape are known as unit cells. If the crystal is incompressible, the best way to explain it is that there is little, if any, space left between its adjacent molecules.
  • No lets look at plasma. When the kinetic energy of molecules increases so much that electrons are released by the atoms, creating a swirling gas of positive ions and negative electrons, the matter changes to a plasma state.An example of plasma that occurs in nature is the radiant sun. Plasma is related to thermal properties in many ways.
  • Temperature depends on the average kinetic energy of particles in a sample. This helps with explaining plasma-based light that doesn't have a high temperature. This shows that most particles in the plasma are heavy and slow. Plasma is also a good conductor of electricity because they have mobile charged particles. A thermal plasma is a plasma that reaches a temperature equal to its surroundings.
  • To end today's class we are going to do an activity. I want everyone to get up and just wander around the room. When I clap, everyone will sit down in the exact spot they are in. OK go. If you are wondering why I did this it was to show that your positions is the best formation for a amorphous solid because you (the particles) do not have a regular structure. BING! Have a great day.
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