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Chapter 19: Q. 36 (page 544)

What maximum power can be radiated by a 10-cm-diameter solid lead sphere? Assume an emissivity of 1.

Short Answer

Expert verified

The answer is232W

Step by step solution

01

Description of the provided information 

Power P=e未AT4

In this case

未=5.67路10-8

Wm2K4is Stefan Boltzmann's constant

02

Result 

It can be stated that, temperature can be increased only to the melting point of lead and that is T=328掳C=601k

The area of sphere:

A=蟺顿2

On the basis of maximum radiated power and substituting the values of numerics:
P=1路5.67路10-8路蟺路0.12路6014=232W

Therefore, the answer is 232w.

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