As an object becomes hotter, the rate of heat transfer from the object to a cooler body with which it is in contact would

a. decrease
b. increase
c. not change
d. no determination can be made from the information given

b. increase

Explanation:

According to fourier's law of conduction the rate of transfer of heat from a hot body to cold body is directly proportional to the temperature difference of the bodies

L= length of the object

A= area of contact

ΔT= temperature difference

k= thermal conductivity.

therefore we can say that As an object becomes hotter, the rate of heat transfer from the object to a cooler body with which it is in contact would

b. increase

b is the correct answer

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