Solids and plasmas

Temperature depends on the average kinetic energy of the particles in a sample. How does this help explain why a plasma-based light does not have a high temperature?

Most particles in the plasma are heavy, slow, and very low density.

Substance X has a fixed volume, and the attraction between its particles is strong. Substance Y has widely spread out particles and can be compressed. What can most likely be concluded about these substances?

Substance X is a solid, and substance Y is a plasma.

Diffusion

The spread of particles through random motion from regions of high concentration to regions of low concentration (until there's equal concentration in both sides)

Keisha makes a table to compare plasmas and solids |plasma | Solid | Kinetic energy| ___X______|__________| Density |____________________| ___Y_____| Which labels belong in the cells marked X and Y?

X:high Y:high

A group of students are wandering around a room. When their teacher claps, the students sit down wherever they are. This situation best models the formation of which type of solid?

an amorphous solid because the particles do not have a regular structure

Which is an example of plasmas in nature?

auroras

A plasma that has particles that never collide frequently enough to exchange kinetic energy and never reach a temperature equal to the surroundings is categorized as a

nonthermal plasma.

Which state of matter is characterized by ionized particles, no definite shape or volume, and good electrical conductivity?

plasma

What are thermal plasmas?

plasmas that reach a temperature equal to their surroundings

Which low-energy state of condensed matter is characterized by structural rigidity and resistance to changes of shape or volume?

solid

Which description best characterizes the motion of particles in a solid?

vibrating around fixed positions