Sometimes YECs claim that one result of the Fall was that a "perfect"
creation, unaffected by the ravages of the Second Law -- with increasing
entropy, with disorder and decay -- became "imperfect" in part because
God imposed the dreaded Second Law of Thermodynamics as a punishment.
Part of what made the creation "good" is that the characteristics of
nature (the force laws, values of constants,...) are such that natural
processes allow life. And the Second Law is an essential part of these
characteristics.
But the Second Law has been so mis-represented by creationists (with
illustrations involving rooms becoming cluttered, and so on) that its
centrality and elegant simplicity have become lost. At its core, the
Second Law simply says that "whatever is most probable (when all things
are considered) will happen." Two essential concepts -- that cause much
confusion when are ignored -- are that it is the entropy of THE UNIVERSE
(not of A SYSTEM) which always increases, and that entropy is a technical
concept involving things like total energy (this is why entropy increases
when an object is heated) and the spacing of energy levels, not things
like cluttered rooms.
Without the Second Law, we would not have any of the normal chemical
reactions of life, or nuclear-generated sunshine, or... The Second Law
is not a curse; it is an essential part of what makes life possible.
Some comments about the Second Law, including a simple illustration,
are at http://www.sit.wisc.edu/~crusbult/origins/app.htm#rate
Craig Rusbult