Third law of thermodynamics

The Third Law of Thermodynamics states that as the temperature of a perfect crystal approaches absolute zero (0 Kelvin, or -273.15 degrees Celsius), the entropy of that crystal approaches a minimum value, which is typically taken to be zero. In simpler terms, it implies that at absolute zero, a perfect crystalline substance would have no disorder and hence no entropy. This law has important implications in physics and chemistry, particularly in understanding the behavior of materials at very low temperatures and the concept of absolute zero.