What value corresponds to absolute zero on the Kelvin scale?

Absolute zero on the Kelvin scale is defined as 0 K. This temperature represents the point at which all molecular motion theoretically ceases, meaning that particles are at their lowest possible energy state. In practical terms, this is equivalent to -273.15 degrees Celsius, which is the temperature commonly used in scientific contexts when translating between Celsius and Kelvin. Therefore, the Kelvin scale starts at 0 K, directly indicating the absolute absence of thermal energy. Understanding this concept is crucial in fields such as physics and thermodynamics, where temperature scales play a significant role in calculations and theories related to energy and states of matter.