Heat TransferHardBloom L1
Question
According to Newton′s law of cooling, the rate of cooling of a body is proportional to (ᐃθ)n, where ᐃθ is the difference of the temperature of the body and the surroundings, and n is equal to
Options
A.two
B.three
C.four
D.one
Solution
According to Newton′s law of cooling.
Rate of cooling
∝ ᐃθ
Therefore n = 1.
Rate of cooling
∝ ᐃθ Therefore n = 1.
Create a free account to view solution
View Solution FreeMore Heat Transfer Questions
An angular rod of same uniform material as shown in figure is conducting heat at a steady rate. The temperature gradient...A body takes 4 minutes to cool from 100oc to 70oc. If the room temperature is 150 c then how many minutes will it need t...Energy is being emitted from the surface of black body at 127oC the rate of 1.0 × 106 J/sm2. The temperature of bla...The rate of solar energy falling on unit area of earth′s surface is nearly (kilo - watt / m2)...Two rectangular blocks, having identical dimensions, can be arranged either in configuration I or in configuration II as...