Question

particles move fastest when they are ____________
condensed
a gas
frozen
a liquid

Explanation:

In the three - states of matter (solid, liquid, gas), gas particles have the most kinetic energy and move the fastest. Particles in a solid (frozen) are in a fixed position, and in a liquid they move more freely than in a solid but less than in a gas. Condensation is a phase - change process, not a state of matter for the comparison of particle speed.

Answer:

B. a gas