The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another. For example, turning on a light would seem to produce energy; however, it is electrical energyRead More →
Second Law: In an isolated system, natural processes are spontaneous when they lead to an increase in disorder, or entropy. This statement is restricted to isolated systems to avoid having to worry about whether the reaction is exothermic or endothermic. Do spontaneous processes decrease entropy? In thermodynamics, a spontaneous processRead More →
Negative entropy means that something is becoming less disordered. In order for something to become less disordered, energy must be used. This will not occur spontaneously. Is entropy always positive? In an irreversible process, entropy always increases, so the change in entropy is positive. The total entropy of the universeRead More →