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  1. Absolute zero - Wikipedia

    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 …

  2. Absolute zero | Definition & Facts | Britannica

    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 …

  3. What Is Absolute Zero? Temperature in Kelvin, Celsius, and 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.

  4. ABSOLUTE ZERO Definition & Meaning - Merriam-Webster

    Dec 23, 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.

  5. ABSOLUTE ZERO Definition & Meaning | Dictionary.com

    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.

  6. Absolute zero - Energy Education

    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.

  7. Absolute Zero — Definition & Importance - Expii

    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.

  8. Absolute zero Definition - Physical Science Key Term | Fiveable

    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 …

  9. ABSOLUTE ZERO definition | Cambridge English Dictionary

    Virtually every material undergoes atomic-level ordering when cooled to temperatures approaching absolutezero. Even to exist for that fraction of a second, qubits require …

  10. Absolute zero explained

    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.