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ENTROPY. Second Law is not Conserved. ENTROPY. Second Law is not Conserved Total entropy of the universe is increasing. Δ S = Δ S SYST + S ENVIR > 0. ENTROPY. Second Law is not Conserved Total entropy of the universe is increasing.

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entropy

ENTROPY

Second Law is not Conserved

entropy1

ENTROPY

Second Law is not Conserved

Total entropy of the universe is increasing.

ΔS = ΔSSYST + SENVIR > 0

entropy2

ENTROPY

Second Law is not Conserved

Total entropy of the universe is increasing.

ΔS = ΔSSYST + SENVIR > 0

“All unused energy goes into the great sea of Entropy” K. Maring

entropy3
ENTROPY
  • Order  Disorder
entropy4
ENTROPY
  • Order  Disorder
  • High T  Low T while there is a ΔT
entropy5
ENTROPY
  • Order  Disorder
  • High T  Low T while there is a ΔT
  • Afterwards they mix and there is no useful work done.
entropy6
ENTROPY
  • Order  Disorder
  • High T  Low T while there is a ΔT
  • Afterwards they mix and there is no useful work done.
  • Gases liquids solids  cold dark solid
entropy7
ENTROPY
  • Order  Disorder
  • High T  Low T while there is a ΔT
  • Afterwards they mix and there is no useful work done.
  • Gases liquids solids  cold dark solid
  • DNA has order, but it uses energy and that used energy has the increase in entropy.
entropy8
ENTROPY
  • Order  Disorder
  • High T  Low T while there is a ΔT
  • Afterwards they mix and there is no useful work done.
  • Gases liquids solids  cold dark solid
  • DNA has order, but it uses energy and that used energy has the increase in entropy.
  • End state  Heat death of matter.
slide12
Largest increase in entropy came after the BIG BANG
  • Temp was 1044 K  3K
  • Much matter has gone through an entropy change and is now been observed.
slide13
Largest increase in entropy came after the BIG BANG
  • Temp was 1044 K  3K
  • Much matter has gone through an entropy change and is now been observed.
  • The WMAP (Wilkinson Microwave Anisotropic Probe) Mapping the cold dark matter in the universe.
slide14
Largest increase in entropy came after the BIG BANG
  • Temp was 1044 K  3K
  • Much matter has gone through an entropy change and is now been observed.
  • The WMAP (Wilkinson Microwave Anisotropic Probe) Mapping the cold dark matter in the universe.
  • European Space Agency – Planck Mission
entropy9
ENTROPY
  • WMAP Web Link at Goddard Space Flt Ctr
  • http://map.gsfc.nasa.gov/index.html
  • Results H = 70.9 km/s/MPc ( Pub 2007)
  • Matter in the Universe
  • http://hyperphysics.phy-astr.gsu.edu/hbase/astro/wmap.html
  • Hubble Telescope - Evidence for Dark Energy
  • http://hubblesite.org/newscenter/archive/releases/category/
entropy10
ENTROPY
  • Results H = 70.9 km/s/MPc ( Pub 2007)
  • Typically T = 1/H = 13.7 x 109 y age of our universe.
entropy11
ENTROPY
  • Results H = 70.9 km/s/MPc ( Pub 2007)
  • Typically T = 1/H = 13.7 x 109 y age of our universe.
  • END - Fishbane, Gasiorowicz and Thorton
transition to schroeder
TRANSITION TO Schroeder
  • Symbols will change – careful
transition to schroeder1
TRANSITION TO Schroeder
  • Symbols will change – careful
  • Equations will have slight changes One example see p.18
transition to schroeder2
TRANSITION TO Schroeder
  • Symbols will change – careful
  • Equations will have slight changes One example see p.18
  • We will be using partial differential equations to define Thermodynamic variables.
transition to schroeder3
TRANSITION TO Schroeder
  • Symbols will change – careful
  • Equations will have slight changes One example see p.18
  • We will be using partial differential equations to define Thermodynamic variables.
  • I’ll will attempt to go over those changes.
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