when you boil water, what is happening to the...
when you boil water, what is happening to the particles?\nthe particles remain the same.\nthe particles speed up.\nthe particles slow down.
Answer
# Brief Explanations:
When water is boiled, heat is added. According to the kinetic - molecular theory of matter, when heat (energy) is supplied to a substance, the kinetic energy of its particles increases. Kinetic energy is related to the speed of particles ($KE=\frac{1}{2}mv^{2}$, where $KE$ is kinetic energy, $m$ is mass, and $v$ is speed). Since the mass of water particles (molecules) remains constant during boiling (no chemical change in the molecules, just a physical state change from liquid to gas), an increase in kinetic energy means an increase in the speed of the particles.
# Answer:
The particles speed up.