Water Temperature: This stock represents represents the initial temperature of the water. The units of this stock is degrees C or F.
 
 

Cooling Rate: This flow represents the rate at which the liquid cools. The units are degrees per minute.
 
 

Room Temperature: This converter represents the ambient temperature.  The units are degrees C or F.
 
 

Cooling Constant: This converter is the constant of proportionality.  It is based on the mass and heat capacity of the liquid, and the insulating factor of the container.