**Thermodynamics** is an experimental science based on a small
number of principles that are generalizations made from experience. It is
concerned only with macroscopic or large-scale properties of matter and it
makes no hypotheses about the small-scale or microscopic structure of matter.
From the principles of thermodynamics one can derive general relations between
such quantities as coefficients of expansion, compressibilities, specific
heat capacities, heats of transformation, and magnetic and dielectric coefficients,
especially as these are affected by temperature. The principles of thermodynamics
also tell us which of these relations must be determined experimentally in
order to completely specify all the properties of the system...

**Thermodynamics** is complementary to kinetic theory and statistical
thermodynamics. Thermodynamics provides relationships between physical properties
of any system once certain measurements are made. Kinetic theory and statistical
thermodynamics enable one to calculate the mangitudes of these properties
for those systems whose energy states can be determined.