Question

In Newton's Law of cooling, fraction numerator d T over denominator d t end fraction equals k (T minus T subscript m )the constant k is_____________.

Answer 1

K-a Positive constant that depends on the area and nature of the surface of the body under consideration.

Explanation:

Newtons law cooling describes the rate at which an exposed body changes temperature through radiation which is approximately proportional to the difference between the object’s temperature and its surroundings, provided the difference is small. The formula is given as:

`(dT)/(dt)=k(T-T_m)`

where,T- temperature at time t,
`T_m` is temperature of the surrounding and k- A Positive constant that depends on the area and nature of the surface of the body under consideration.