In the field of quantum mechanics, absolute zero represents the lowest internal energy of solid matter in its zero/ground state. In simple terms, heat may not be removed from a system at absolute zero, there might be some heat stored in it, so it clearly states absolute zero does not represent the lowest possible enthalpy state. It is the point at which the Kelvin and Rankine temperature scale set their zero points at absolute 0.Īccording to the Classic Kinetic Theory, absolute zero represents the absence of movement of individual molecules in a substance whereas the experimental evidence shows this isn't the case, rather, it indicates that particles at absolute zero have the lowest vibratory motion. The basic particles of nature have the lowest vibrational motion, containing only quantum mechanical and zero-point energy-induced particle motion. We can say that absolute zero temp is a state at which the enthalpy-and-entropy'>enthalpy and entropy of a cooled ideal gas reach their minimum value, taken as zero kelvin. We say that an Absolute zero is the lowest value on the thermodynamic temperature scale. In this article, we will learn about Absolute Zero Temperature in detail. However, the concept of Absolute 0 remains a theoretical concept. We call this the lowest temperature a thermodynamic system bears. The value of the Absolute Zero in Fahrenheit is 459.76 degrees Fahrenheit, and the value of Absolute Zero in Celsius is -273.15 degrees Celsius.

An absolute zero is also called the zero kelvin because it is zero on the Kelvin scale. An Absolute zero is the temperature at which particles constitute a minimal amount of heat.

Entropy of ideal gas at absolute zero