Question

state and discuss the conqusence of newton law of cooling

Answer 1

According to Newton's law of cooling, the rate of loss of heat from a body is directly proportional to the difference in the temperature of the body and its surroundings.

Answer 2

Answer:

The rate of cooling of a hot body is directly proportional to diffrence in temparature of the hot body and its surrounding provided the diffrence is small.

if dϴ is the fall of temparature of the hot body in a time dt then

$\frac{dϴ}{dt}∝(ϴ-ϴ_೦)$

or

$\frac{dϴ}{dt}=-k(ϴ-ϴ_0)$

where k is proportional constant.-ve sign indicates that as the temparature of the hot body decreases ,rate of cooling also decreases.

where ϴ is the average temparature of the hot body at the givem time dt and ϴ_0 is the surrounding temparature.

if the temparature of a body decreases from

$ϴ_1 \: to \: ϴ_2$

in dt sec then average temparature of the body

$ϴ=\frac{ϴ_1+ϴ_2}{2}$

hope it helps ✔︎✔️✔︎