Newton's Law of Cooling - GeeksforGeeks
www.geeksforgeeks.org › newtons-law-of-coolingJun 16, 2021 · According to Newton’s law of cooling, – dQ/dt = k (T2–T1) Substitute the value in the above expression, 8 °C /2 min = k (70 °C) ……… (1) The average of 69 °C and 71 °C is 70 °C, which is 50 °C above room temperature. the value of K is the same. Substitute the value in the above expression, 2 °C /dt = k (50°C) …… (2) Equate equation (1) and (2),