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Question 3.3: A dermatologist uses cryogenic nitrogen at - 196 °C to remov...

A dermatologist uses cryogenic nitrogen at – 196 °C to remove skin lesions and some skin cancers. What is the temperarure, in degrees Fahrenheit, of the nitrogen?

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STEP 1   State the given and needed quantities.

ANALYZE THE PROBLEM Given Need Connect
-196 °C T in degrees Fahrenheit temperature equation

STEP 2   Write a temperature equation.

\boxed{T_{F} = 1.8(T_{C}) + 32 }

STEP 3   Substitute in the known values and calculate the new temperature.

\boxed{ T_{F} = 1.8(-196) + 32}     1.8 is exact; 32 is exact

             =-353 + 32 = -321 °F        Answer to the ones place

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