What is the equivalent of a temperature difference of 1°C?

• A. It is equivalent to 0.5 K
• B. It is equivalent to 1 K
• C. It is not equivalent to any other measure
• D. It is equivalent to 10 K

Answer: (B)

A temperature difference of 1°C is indeed equivalent to a difference of 1 K. The Celsius and Kelvin scales have the same incremental value, which means that an increase or decrease in temperature by 1 degree Celsius corresponds directly to an increase or decrease of 1 Kelvin.

This relationship holds because the Kelvin scale is an absolute temperature scale where 0 K (absolute zero) is equal to -273.15°C. Hence, while the numerical values differ at specific points on the scale, the measure of temperature change—whether expressed in degrees Celsius or Kelvin—remains consistent. This concept is critical in fields like thermodynamics and refrigeration, where precise temperature measurements are fundamental.