A-to-Z Guide to Thermodynamics,
Heat & Mass Transfer, and Fluids Engineering
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The Fahrenheit degree (named after German physicist G.D. Fahrenheit, 1686-1736) is the unit of temperature (designated by °F) which is equal to 1/180 part of temperature interval between the points of ice melting (32°F) and of water boiling (212°F) at normal atmospheric pressure. Thus, TC = (TF – 32)/1.8, where TC is the temperature in °C, and TF is the temperature in °F (see Figure 1).

Comparison of temperature scales (C, Celsius or Centigrade; K, Kelvin; F, Fahrenheit; R, Rankine).

Figure 1. Comparison of temperature scales (C, Celsius or Centigrade; K, Kelvin; F, Fahrenheit; R, Rankine).

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