When would it be approapriate to use the Kelvin scale?
It is most appropriate to use the Kelvin scale when you need to deal with temperature in ‘absolute terms’, that is, with respect to ‘absolute zero’, which is defined as the oint where all molecular and atomic motion cease (well, there’s a little more to ‘cease’, but close enough for purposes of this discussion). Such use of the kelvin scale thus make the most sense when dealing with such terms and calculations involved in physics and cryogenics. For the rest of us, to whom absolute zero is a meaningless term for use in our every day lives, we use Fahrenheit or Celcius scales, which are related to freezing and boiling points of water, with Fahrenheit being the most confusing derivitive of this. Anyway, we relate to the freezing and boiling points of water better, because this is a physical quality we can experience with meaning. Therefore, Celcius and Fahrenheit have more intrinsic meaning to us than Kelvin.
