Rudolf Clausius Quotes

• Heat can never pass from a colder to a warmer body without some other change, connected therewith, occurring at the same time.

  Rudolf Clausius

  Body, Heat, Connected

  "On a Modified Form of the Second Fundamental Theorem in the Mechanical Theory of Heat" (1856)

  10 Copy quote

• The total energy of the universe is constant; the total entropy is continually increasing.

  Rudolf Clausius

  Energy, Entropy, Constant

  15 Copy quote

• The entropy of an isolated system not in equilibrium will tend to increase over time, approaching a maximum value at equilibrium.

  Rudolf Clausius

  Increase, Equilibrium, Entropy

  7 Copy quote

• The fundamental laws of the universe which correspond to the two fundamental theorems of the mechanical theory of heat.
  1. The energy of the universe is constant.
  2. The entropy of the universe tends to a maximum.

  Rudolf Clausius

  Science, Law, Two

  Rudolf Clausius (1867). “The Mechanical Theory of Heat: With Its Applications to the Steam-engine and to the Physical Properties of Bodies”, p.365

  8 Copy quote

• The energy of the universe is constant.

  Rudolf Clausius

  Energy, Entropy, Constant

  "Ueber Verschiedene fur die Anwendung Bequeme Formen der Hauptgleichungen der Mechanischen Warmetheorie" (1865).

  20 Copy quote

• The algebraic sum of all the transformations occurring in a cyclical process can only be positive, or, as an extreme case, equal to nothing. Statement of the second law of thermodynamics, 1862

  Rudolf Clausius

  Law, Being Positive, Transformation

  12 Copy quote

• The entropy of the universe tends to a maximum.

  Rudolf Clausius

  Entropy, Maximum, Universe

  Rudolf Clausius (1867). “The Mechanical Theory of Heat: With Its Applications to the Steam-engine and to the Physical Properties of Bodies”, p.365

  26 Copy quote

• In all cases where work is produced by heat, a quantity of heat proportional to the work done is expended; and inversely, by the expenditure of a like quantity of work, the same amount of heat may be produced.

  Rudolf Clausius

  Done, May, Heat

  "On the Moving Force of Heat, and the Laws Regarding the Nature of Heat Itself Which Are Deducible Therefrom" (1851)

  7 Copy quote

• facebook
• twitter
• googleplus
• email
• linkedin