The second law of thermodynamics states that the entropy of a closed system always increases. Cellular...
The second law of thermodynamics states that the entropy of a closed system always increases. Cellular systems take disordered substrates to construct highly ordered molecules and organelles. How can photosynthesis be used to make glucose without violating this law? Note: glucose is more a ordered molecule then the CO2 used to construct it.
Homework Answers
The thermodynamics laws apply to all systems which involve
energy
transformations and
energy. photosynthesis do fall in this category.
In photosynthesis,
For first law of thermodynamics : conservation law
Plant just transforms light energy into food energy
but
does not make
energy
For second law of thermodynamics : Transformation law
During the process, since most of energy is lost as heat ,
not all of the energy
is converted
For third law of
thermodynamics : Entropy law
Needs a regular stream of energy , For keeping system
going.
Photosynthesis needs a regular stream of energy to make glucose
without violating this law.
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