Heat and Thermodynamics :: Problem 1

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Problem 1: At what temperature do the Fahrenheit and Celsius scales co-inside?

Solution:

Step:1 Overview

Fahrenheit and Celcius scales are related with each other by the equation given below:

F=1.8C+32

We have to find that at which point both of these scales coincide, so equating both of these scales we get:

F=C
F = 1.8F+32
F-1.8F = 32
-0.8F =3 2
0.8F = -32
F = -32/0.8
F = -40 = C (Ans)