Chapter1: Temperature And Heat
Section: Chapter Questions
Problem 95P: (a) What is the rate of heat conduction through the 3.00-cm-thick fur of a large animal having a I...
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![4G lI.
Aa
lag question
(1a). Black body has emissivity value of 1,
but in reality, the emissivity of real objects is
less than 1. Why??
(1b). The tungsten sphere of 260 mm radius
is at a temperature of 33°C. If the power
radiated by sphere is 89 W, calculate its
emissivity value?
(1c).lf the same sphere is enclosed in room
whose walls are kept at -19°C, what is the
net flow rate of energy out of the sphere in
Watts (W)
Your story
Close Friends](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6ba65a97-d01b-4565-9769-62fdc0f5b1db%2Fc36f0e3a-7a59-4b6d-af28-1461819f70d2%2Fhexd26b_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4G lI.
Aa
lag question
(1a). Black body has emissivity value of 1,
but in reality, the emissivity of real objects is
less than 1. Why??
(1b). The tungsten sphere of 260 mm radius
is at a temperature of 33°C. If the power
radiated by sphere is 89 W, calculate its
emissivity value?
(1c).lf the same sphere is enclosed in room
whose walls are kept at -19°C, what is the
net flow rate of energy out of the sphere in
Watts (W)
Your story
Close Friends
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