The temperature at which all the particle motion almost stops is termed Absolute Zero. It is also the lowest possible temperature.  More about this has been stressed upon in the Third Law of Thermodynamics - Explanation, Trends, Properties, and Applications on Vedantu.The concept of Absolute Zero needs to be understood in relation to Thermodynamics. It needs to be clear for the student to answer all questions related to it. This page has relevant information and nothing unnecessary has been included.