14.2.3—Convert temperatures between kelvin and degrees Celsius and recall that T /
- Syllabus
- 9702–2028–2029
- Objective
- 14.2.3
- Level
- A2
Convert between kelvin and Celsius using T(K)=θ(°C)+273.15
Thermodynamic temperature T in kelvin relates to Celsius temperature θ by T=θ+273.15.
Kelvin is an absolute scale with the same degree size as Celsius but a different zero. Use kelvin in gas and thermodynamic equations unless instructed otherwise.
25 °C is 298.15 K; 0 °C is 273.15 K, not 0 K.
A temperature difference of 1 °C equals 1 K, but an absolute temperature of 1 °C is not 1 K.
ConceptA-Level CAIE Physics A2