BodhiAI
Nov. 4, 2019

#### Newtons Law Of Cooling:

Newton’s Law of Cooling

When the temperature difference between the body and its surrounding is not very large i.e.

, T – T0 = T then T4- T40 may be approximated as 4T30 T

By Stefan’s law, dT/dt = Aεσ[T4 – T40 ]/mc

dT/dt T or dθ/dt θ0

Rate of cooling is proportional to temperature difference between the body and surrounding. the law is called Newton's law of cooling.

As dθ/dt -( θ- θ0) → dθ/- θ0) = - Kdt