According to newton’s law of cooling, the rate at which a substance cools in air is directly proportional to the difference between the temperatures of the substance and that of air. if the temperature of the air is 30°f and the substance cools from 100° to 70°f in 15 minutes, how long will it take to cool 80°f to 35°f?

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Thermodynamic Relations

Thermodynamics is the division of physics that deals with the transfer of any kind of energy, whether it be heat, temperature, or work, from one object to another.