Q
QuestionPhysics

"What is absolute zero? What is the temperature of absolute zero on the Kelvin and Celsius scales?"
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: Definition of Absolute Zero

Absolute zero is the lowest possible temperature in the universe, representing the point at which molecular motion virtually stops. At this temperature, atoms and molecules have minimal thermal energy and exhibit the least possible quantum motion.

Final Answer

- Absolute zero on the Kelvin scale: 0 \mathrm{K} - Absolute zero on the Celsius scale: - 273.15 \mathrm{°C} Key Insight: Absolute zero represents a theoretical limit where molecular motion is minimized, and it serves as the zero point for the Kelvin temperature scale.