化学反应速率与化学达到平衡的倾向的区别 We saw that a reaction with a very large equilibrium constant has a tendency toward the products so that very little of the reactants remain equilibrium is reached. Such a reaction is said to be spontaneous. However, as we have already pointed out, spontaneous doesn't mean fast
Wave motion is the most universal physical phenomenon, we discover the wave motion all around us. Mechanical waves—acoustic wave, water wave Electromagnetic waves—radio, light wave Matter waves—electron wave
All around us: wheels, skaters, ballet, gymnasts, helicopter, rotors, mobile engines, CD disks, … Atomic world: electrons— “spin”, “orbit”. Universe: planets spin and orbiting the sun, galaxies spin, …