Zero kelvin (−273.15 °C) is defined as absolute zero. Absolute zero is the lowest possible temperature, a state at which a system's internal energy, and in ideal cases entropy, reach their minimum values.

Nov 20, 2025 · Absolute zero, temperature at which a thermodynamic system has the lowest energy. It corresponds to minus 273.15 degrees Celsius and to minus 459.67 degrees Fahrenheit.

Aug 10, 2020 · Absolute zero is defined as the temperature at which a cooled ideal gas is in its lowest energy state. In other words, it’s the point at which no more heat can be removed.

Nov 21, 2025 · The meaning of ABSOLUTE ZERO is a theoretical temperature characterized by complete absence of heat and motion and equivalent to exactly —273.15°C or —459.67°F.

ABSOLUTE ZERO definition: the temperature of −273.16°C (−459.69°F), the hypothetical point at which all molecular activity ceases. See examples of absolute zero used in a sentence.

Dec 19, 2025 · Zero of thermodynamic temperature (0 kelvin) and the lowest temperature theoretically attainable. It is the temperature at which the kinetic energy of atoms and molecules is minimal.

This temperature, where there's no thermal energy at all, is called absolute zero. [2] Numerically, this is written as 0 K, -273.15 °C, or -459.67 °F.

Absolute zero is the lowest possible temperature, when no heat remains. As the temperature of a substance decreases, its molecules move slower, including electrons, protons, and neutrons.

Absolute zero represents the point at which molecular motion comes to a complete halt, resulting in the lowest possible thermal energy within a substance. At this temperature, particles have no kinetic …

Absolute zero is the lowest limit of the thermodynamic temperature scale; a state at which the enthalpy and entropy of a cooled ideal gas reach their minimum value.