Problem 11.1. i) The normal body temperature is 98.4 F. What is this temperature on Celsius scale? ii) At what temperature do the Fahrenheit and Celsius scales coincide. Heat problem 1. Sindh Textbook Board (stb) problems. Class 12 chapter heat problems sindh textbook board.

Problem 11.1. i) The normal body temperature is 98.4 F. What is this temperature on Celsius scale? ii) At what temperature do the Fahrenheit and Celsius scales coincide.

Problem 11.1

The normal human body temperature is 98.4 f.

What is temperature  of Celsius scale ?

Data.                              Solutions 

Tf=98.4°f.                       T°C =5/9.   [T°f -32]

Tc=?                                  T°C =5/9 (98.4-32)

                                       T°C = 5/9      x66.4

                                    T°C =36.88°C 

*answer *     T°C =36.88°C 

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Part 2 

At what temperature do the Fahrenheit and Celsius scale colncide. 

Solution 

Let T°F = T°C =x

T°C  5/9.     (T°F - 32)

X= 5/9 (x - 32)

       9x = 5x - 160 

       4x = - 160

        X = -40