Entropy
Entropy of system, is a measure of the avaialability of its energy. A system
with high entropy can do less useful work. This concept was formally used to
define the second law of thermodynamics.
Specific Entropy
Specific entropy of a system is the entropy of the unit mass of the system and has the dimension of energy/
mass/temperature. The
SI unit of specific entropy is J/(Kg . K). Other units are:
- 1 KJ/kg,K= 1000 J/(Kg . K)
- 1 erg/g,K= 1E-4 J/(Kg . K)
- 1 Btu/lbm,F= 4186.8 J/(Kg . K)
- 1 cal/g,C= 4186.8 J/(Kg . K)
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