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Old 10-08-2018, 07:36 PM
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socratus socratus is offline
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Join Date: Aug 2011
Location: Israel
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Entropy is responsible for heat, time, information

'Arrow of time’ reversed in quantum experiment
But the second law of thermodynamics still holds true
NOVEMBER 27, 2017

'' ... heat can spontaneously flow from a cold quantum particle to
a hotter one under certain conditions:. . .''

The existence of an arrow follows from the second
law of thermodynamics. The law states that entropy,
or disorder, tends to increase over time.

Reversing the arrow of time was possible for the quantum particles
because they were correlated — their properties were linked in a way
that isn’t possible for larger objects, a relationship akin to quantum
entanglement but not as strong. This correlation means that the particles
share some information.

Entropy Phenomena
Between 1850 - 1865 Rudolf Clausius published a paper
in which he called " The energy conservation law" as
" The first law of thermodynamics". But in our nature the
heat always flows from the higher temperature to the
lower one and never back. In our everyday life we don't see
the heat itself rises from cold to hot. So, it seemed that
in thermodynamics " The energy conservation law"
wasn’t kept, this law was broken. But Clausius had another
opinion. He thought:
I know people believe that this process is
irreversible, but I am sure that " The energy conservation law"
is universal law and it must be correct also for thermodynamic
process. So, how can I save this law ?
Probably, in the thermodynamic process there is something
that we don't know. Maybe, there is some degradation
of the total energy in the system which never disappears .
Perhaps, there is some non-useful heat, some unseen process ,
some unknown dark energy , some another form of potential
energy/heat itself which can transform heat from the cold
body to the warm one. I will call this conception as " entropy"
and it will mean that changes of entropy (dS) can be calculated
for reversible process and may be defined as the ratio of the
quantity of energy taken up (dQ) to the thermodynamic
temperature (T), i.e. dS= dQ /T.
And because I don't know how this process goes I won't call
it as a law, but as " The second principle of thermodynamics "
which says that " the entropy of an isolated system always
increases ". Another version: " No process is possible
in which the only result is the transfer of heat from a hotter
to a colder body. It is possible some reversible process which
is unknown now ."
Later, Ludwig Boltzmann described ''entropy'' by a formula: S= k log W.
And, finally, Max Planck described ''entropy'' as: h*f = kT logW .
a) ''entropy'' saves us from ''cold death'' by creating hot systems (stars, planets ).
b) entropy phenomena can allow 'Arrow of time’
c) entropy phenomena allow particles to share some information.
Entropy is responsible for heat, time, information and it is a pity, that until today
we cannot understand so called '' phenomena of entropy''',
Best wishes
Israel sadovnik socratus
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