What is zero Kelvin?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Zero Kelvin (0 K) is absolute zero, the lowest possible temperature in the universe. It equals -273.15°C or -459.67°F. At this temperature, all molecular motion theoretically stops. In practice, absolute zero cannot be reached, though scientists have gotten extremely close in laboratory conditions. It represents the point where matter contains minimal thermal energy.
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