Question

states of matter and changes of state (pib chemistry period 4)
8
which of the following is true regarding solids? * (0.5 points)
the particles in a solid are fixed in place and do not move
the particles in a solid have higher kinetic energy than those of a gas
the particles in a solid can switch places and flow around each other
the particles in a solid are fixed in place, but they do vibrate back and forth
9
rank the following states of matter in decreasing amounts of kinetic energy. (highest kinetic energy on the top, lowest kinetic energy on the bottom. * (0.5 points)

Explanation:

Question 8: Solids have particles with fixed positions that vibrate. Question 9: Kinetic energy decreases from gas to liquid to solid.

Answer:

1. D. the particles in a solid are fixed in place, but they do vibrate back and forth
2. gas, liquid, solid