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Carnot Efficiency Calculator

Free calculate maximum theoretical efficiency of heat engines using carnot's theorem from hot and cold reservoir temperatures.

Input Parameters

Source temperature

Sink temperature

Results

Enter temperatures to calculate Carnot efficiency

Carnot Efficiency Formula

Efficiency Formula

η = 1 - (TC / TH)

Where TH and TC are in Kelvin

Key Points

  • • Maximum possible efficiency
  • • Depends only on temperatures
  • • Cannot exceed 100%
  • • Real engines are less efficient

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