Multiple choice

Which of the following formulae is correct for converting Celsius temperature into Kelvin temperature?

  1. K = °C + 273

  2. C = K + 273

  3. °C + K = 273

  4. K = °C - 273
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A Correct answer
Explanation

The relationship between Celsius and Kelvin scales is K = °C + 273.15, commonly approximated as K = °C + 273. This is because 0°C (freezing point of water) equals 273.15 K, and the size of one degree is identical on both scales. Kelvin is the absolute temperature scale where 0 K represents absolute zero.

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