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Laws of thermodynamics
The four laws of thermodynamics define
fundamental physical quantities
(temperature, energy, and entropy) that
characterize thermodynamic
systems at thermal equilibrium.The laws
describe how these quantities behave
under various circumstances, and forbid
certain phenomena (such as perpetual
motion).
INTRODUCTION
Circa 1797, Count Rumford (born Benjamin
Thompson) showed that endless mechanical action can
generate indefinitely large amounts of heat from a
fixed amount of working substance thus challenging
the caloric theory of heat, which held that there would
be a finite amount of caloric heat/energy in a fixed
amount of working substance.The first established
thermodynamic principle, which eventually became
the second law of thermodynamics, was formulated
by Sadi Carnot in 1824.
History
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics
Laws of thermodynamics

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Laws of thermodynamics

  • 2. The four laws of thermodynamics define fundamental physical quantities (temperature, energy, and entropy) that characterize thermodynamic systems at thermal equilibrium.The laws describe how these quantities behave under various circumstances, and forbid certain phenomena (such as perpetual motion). INTRODUCTION
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  • 26. Circa 1797, Count Rumford (born Benjamin Thompson) showed that endless mechanical action can generate indefinitely large amounts of heat from a fixed amount of working substance thus challenging the caloric theory of heat, which held that there would be a finite amount of caloric heat/energy in a fixed amount of working substance.The first established thermodynamic principle, which eventually became the second law of thermodynamics, was formulated by Sadi Carnot in 1824. History