Cooking Thermometers / Cooking Thermometers / At what temp will an alcohol thermometer w/a F scale read the same # as a thermomemter w/a celsius scale?

At what temp will an alcohol thermometer w/a F scale read the same # as a thermomemter w/a celsius scale?

"Alcohol thermometers can measure temperatures in the range of -100*F – 200*F. Determine the temperature at which an alcohol thermometer with a Fahrenheit scale will read the same number as a thermometer with a Celsius scale."

I have no idea, anybody have an answer?
Thanks!


Filed under: Cooking Thermometers | Aug 25th, 2009.

One Response to “At what temp will an alcohol thermometer w/a F scale read the same # as a thermomemter w/a celsius scale?”

  1. devilsadvocate1728, on January 20th, 2009 at 3:04 pm Said:

    The conversion formula from deg C to deg F is
    F = 9/5C + 32.
    You are asking at what temperature the numerical reading in deg F is the same as that for deg C, that is, where F = C. It is then a matter of setting up the equation

    9/5C + 32 = C

    and solving for C. The answer is the two scales will read the same number at -40 deg F or C.

    You will get the same result if you use the conversion from deg C to deg F, namely,
    5/9(F – 32) = C
    and use the equation
    F = 5/9(F – 32)

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