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Q39
(NDA-II/2018)
Science & Technology › Basic Science (Physics, Chemistry, Biology) › Thermal physics
Answer Verified
The absolute zero temperature is o kelvin. In C unit, which one of the following is the absolute zero temperature?
Result
Your answer:
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·
Correct:
C
Explanation
Absolute zero is defined as the lowest possible temperature where atomic motion reaches its theoretical minimum. On the Kelvin scale, this point is designated as 0 K. The Kelvin and Celsius scales use the same degree increments, but they differ in their starting points. To convert from Kelvin to Celsius, one must subtract 273.15 from the Kelvin value. Consequently, 0 K is exactly equal to -273.15 °C. While the Celsius scale is based on arbitrary reference points like the freezing and boiling points of water, the Kelvin scale is an absolute scale where zero represents the absolute limit of coldness. Therefore, the absolute zero temperature in Celsius units is -273.15 °C.
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