As water vapor molecules move FROM evaporation TO condensation, the molecules are

1.loosing energy, rising and expanding
2. gaining energy, rising and expanding
3. gaining energy, condensing and sinking
4. loosing energy, condensing and sinking

How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.