Certified Hyperbaric Technologist Practice Test

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What is the Kelvin equivalent of absolute zero?

  1. -273.15 degrees

  2. 0 degrees

  3. 273.15 degrees

  4. 100 degrees

The correct answer is: -273.15 degrees

The Kelvin scale starts at absolute zero, which is defined as the point at which the motion of particles theoretically comes to a complete stop. Absolute zero is equivalent to -273.15 degrees Celsius. This means that on the Kelvin scale, absolute zero is represented as 0 K. Since the Kelvin scale is an absolute temperature scale, it does not have negative values. Therefore, the Kelvin equivalent of absolute zero is -273.15 degrees Celsius, which translates directly to 0 K in the Kelvin measurement. Understanding the relationship between the Celsius and Kelvin scales is essential for those studying thermodynamics and the principles of temperature measurement.

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