  Thawing and freezing quintessence models are compared thermodynamically. Both
of them are found to disobey the Generalized Second Law of Thermodynamics.
However, for freezing models, there is still a scope as this breakdown occurs
in the past, deep inside the radiation dominated era, when a standard scalar
field model with a pressureless matter is not a correct description of the
matter content. The thawing model has a pathological breakdown in terms of
thermodynamics in a finite future.
