Answer with explanation:
Pottery is on a Kiln.
Unit of temperature can be Kelvin(°K) or Degree Celsius(°C) or Fahrenheit(°F).
Unit of time is second, minute and hour.
Rate of change of temperature of the pottery over time can be written as
![1.=\frac{\text{Degree Celsius}}{\text{Second}}\\\\2.=\frac{\text{Degree Celsius}}{\text{Minute}}](https://img.qammunity.org/2019/formulas/mathematics/college/svia1epcmg3zp2j0pqi5t0qe13svv8hyed.png)
Internationally , Kelvin is used as S.I unit of Temperature.
So,Yanin can use
![1.=\frac{\text{Kelvin}}{\text{Second}}\\\\2.=\frac{\text{Kelvin}}{\text{Minute}}](https://img.qammunity.org/2019/formulas/mathematics/college/eil35o0oizf5orhwksi5cyugysrdppi9d3.png)
as Rate of change of temperature of the pottery over time.