Science, asked by alwaisbagwan, 1 month ago

what is emissivity?state it's valuses for a perfectly black body and for a perfect reflector





104 kj of work is done on certain volume of a gas. if the gas raleases 125 kj of heat, calculate the change in internal energy (in kj ) of the gas.



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Answers

Answered by SejalModak
1

Answer:

A blackbody has an emissivity of 1, while a perfect reflector or whitebody has an emissivity of 0. Most natural objects are considered "graybodies" as they emit a fraction of their maximum possible blackbody radiation at a given temperature.

Explanation:

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