Carnot's cycle


  • Webster's Revised Unabridged Dictionary
    • Carnot's cycle kär`nōz" (Thermodynamics) An ideal heat-engine cycle in which the working fluid goes through the following four successive operations: (1) Isothermal expansion to a desired point; (2) adiabatic expansion to a desired point; (3) isothermal compression to such a point that (4) adiabatic compression brings it back to its initial state.
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Webster's Revised Unabridged Dictionary
After N. L. S. Carnot, French physicist


In science:

The first perpetual engine of the third kind (Figure 3(a)) violates the Einstein statement of the third law: it uses the Carnot-Nernst cycle with a compact cooling reservoir at TC = 0 and infinitely small entropy S = −∞ (the cycle’s working fluid is presumed to have vanishing heat capacity at T → 0).
Teaching the third law of thermodynamics