What is the formula to convert Kelvin to Celsius?

• A. C = K + 273
• B. C = K - 273
• C. C = 273 - K
• D. C = K x 273

Answer: (B)

The formula to convert Kelvin to Celsius is derived from the relationship between the two temperature scales. Specifically, the Kelvin scale is offset from the Celsius scale, where 0 Kelvin corresponds to -273.15 degrees Celsius. To convert Kelvin (K) to Celsius (C), you subtract 273.15 from the Kelvin temperature.

The correct expression is C = K - 273.15. However, in many contexts, especially in simplified questions, 273 may be used instead of 273.15 for ease, particularly when exact precision is not necessary.

This conversion is important in fields like physics and engineering, where temperature measurements may need to be standardized across different systems and contexts. Understanding this relationship is crucial for engineers and technicians involved in electrical science and related fields, as they often work with temperatures when designing and troubleshooting systems.