Introduction to the first and second laws of thermodynamics and their implications in biological processes. The ways organisms evolved to fulfill the thermodynamic laws.
Thermodynamics= Study of energy + its transformation
↳ determines exch in sys + ability to preform work
energy
-
1) energy only transformed 10t created/destroyed
2) every spontaneous x ind entropy of universe
Concepts ↳ unqualiability of system's thermal energy
-
rea for mech work ,
randomness
-
enthalpy (H) : used when temp + pressure constant to find total energy
-
AH = H
final state of rx-Hinitial state of x
(prod-reactants)
-
+OH =
energy added (products > rectants)
↳ endothermic Enters
heat
,
- -
SH =
energy removed (products creactants (
↳ exothermic , next Exits
-
free energy (6) : energy in system used ao
to work
-
same 16 en
-
more than I molecula ? A + BC+ 1) 16 =
Gc + Cp-Ga-6p
- + 16 =
enclargonic ,
free energy Enters
- - A 6 = exersonic ,
free energy Exits
-
entropy (S) : and disorder in system
-
same &S en
-taS = products more disordered
- -
AS = products less disordered
Egs and Laws in
Biology
-
total energy is conserved
-
SH = 16 + TAS CT = abstemp in 1)
b
↳ chemical work (10) + heat that inc disorder (TSS)
total energy of system
-
entropy of universe is inc be release energy Cey heat) inc disorder
-
16 = SH -
TAS
- -
16 =
Spontaneous incentropy of universe , decentropy of system
,
-
+ 16 = non-sport , want occur was input of energy Cey ATP)
- still dec entropy of system be energy in put is released as heat
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