Hello, In science there are so many equilibrium concepts. Pressure, electricity ,concentration..... Everything seems to be moving from high to low to reach equilibrium My questions are 1. Why does everything try to reach equilibrium? (Extremes are generally harmful and for survival of this word equilibrium is required is that the reason) 2. From where do the particles get energy to move from high to low and how do they know they have to move from high to low to reach equilibrium. Thank you very much!!