Example Problem with Complete Solution

1B-5 : Temperature Unit Conversions 2 pts
The temperature of a system drops by 27oF during a cooling process. Express this drop in temperature in K, oR, and oC.
Read : The key to this problem is that we are considering a CHANGE in temperature and NOT a temperature of 27oC.
Given : ΔT 27 oF
Find : ΔT ??? K
ΔT ??? oR
ΔT ??? oC
Solution : Start with Rankine.  The temperature increments for the Fahrenheit and Rankine scales are the same.  Therefore :
ΔT 27 oR
Next, let's work on getting DT in the Kelvin scale.
This is straightforward because a temperature change of 1 K is equal to a temperature change of 1.8 oR.
eqn-1
Eqn 1
ΔT 15 K
Finally, the temperature increments for the Celsius and Kelvin scales are the same.
Therefore : ΔT 15 oC
Answers : ΔT 15 K
ΔT 27 oR
ΔT 15 oC