My Math Forum conversion of entropy

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 January 3rd, 2017, 04:14 AM #1 Newbie   Joined: Dec 2016 From: United Kingdom Posts: 14 Thanks: 1 conversion of entropy Are two units kj/kg.k and kj/kg.c equal?(about unit of entropy) why? I got in trouble to calculate the entropy unit? Please help.
 January 12th, 2017, 05:50 AM #2 Senior Member   Joined: Apr 2014 From: Glasgow Posts: 2,080 Thanks: 698 Math Focus: Physics, mathematical modelling, numerical and computational solutions Always use Kelvin for temperature units because Celsius is not an SI unit. Celsius should be seldom used unless you're quoting a temperature in Celsius (like T= 25 $\displaystyle ^o$C)
 January 13th, 2017, 04:01 AM #3 Member     Joined: Oct 2016 From: labenon Posts: 33 Thanks: 4 Without any doubt entropy is kJ/K. Note entropy is an extensive quantity. The units you wrote do not correspond to entropy, but to specific entropy with units kJ/kg.K. As advised above one should always use the Kelvin units for temperature. When units are in denominator we indeed are using corresponding delta value of unit magnitude on a given scale. This fact needs to be always kept in mind.

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