Question

which shows the formula for converting from kelvins to degrees celsius?
°c = (9/5 × k) + 32
°c = 5/9 × (k - 32)
°c = k - 273
°c = k + 273

Explanation:

The formula for converting Kelvin (\(K\)) to Celsius (\(^{\circ}C\)) is based on the relationship between the two temperature scales. The zero - point of the Kelvin scale is \(0\ K\) (absolute zero), and the zero - point of the Celsius scale is \(273.15\ K\approx273\ K\). To convert from Kelvin to Celsius, we subtract \(273\) from the Kelvin temperature value.

• The formula \(^{\circ}C=(9/5\times K)+32\) is the formula for converting Kelvin to Fahrenheit, not Celsius.
• The formula \(^{\circ}C = 5/9\times(K - 32)\) is the formula for converting Fahrenheit to Celsius.
• The formula \(^{\circ}C=K + 273\) would give a value that is much higher than the correct Celsius value for a given Kelvin temperature.

Answer:

\(^{\circ}C=K - 273\) (the third option)