Humber Admissions Practice Test

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According to the conversion formulas, how do you convert Kelvin to Celsius?

C = K + 273
C = K - 273
C = K / 273
C = K * 273

The correct answer is: C = K - 273

To convert Kelvin to Celsius, the correct formula is C = K - 273. This relationship is established because the Kelvin scale starts at absolute zero, which is -273.15 degrees Celsius. The conversion accounts for this difference in the baseline values of the two temperature scales. When you have a temperature in Kelvin, subtracting 273 gives you the equivalent temperature in Celsius. For instance, if you take 300 Kelvin and use the formula C = K - 273, you would calculate it as 300 - 273, resulting in 27 degrees Celsius. The other options suggest incorrect methods for conversion, such as adding or improperly dividing or multiplying by 273, which do not reflect the relationship between these two temperature scales accurately. This understanding is crucial, especially in fields such as science and engineering, where precise temperature conversions are necessary for experiments and calculations.