Error treatment on temperature~~ I recently did an experiment at school. I don't know how to calculate the error of temperature after changing the unit of temp. from degree celsius to kelvin. Here is the question. Let T=23 °C ± 0.5 What is the error after changing the unit to kelvin? Should I keep dT/T=dT'/T' (T and T' are the temperature in degree celsius and kelvin respectively)? Or do it in other ways?