Muhammad is Mechanical Enginecring for Boeing, and designs a refrigerator that is to be used in the Interriational Space Stotion (ISS) for Biolagy experiments. The biological samples are cell cultures, which primorily consist of water and hove an averáge mass of 375 g. These samples are initially at a temperature of 23°C but must be frozen and tooled to a temperature of -20°C for storage. If Muhammad's refrigerator uses 25 KJ of work to do this, what is its coefficient performance ?

University Physics Volume 2
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ISBN:9781938168161
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Chapter2: The Kinetic Theory Of Gases
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Muhammad is Mechanical Engineering for Boeing, and designs a refrigerator
that is to be used in the International Space Station (ISS) for Biology experiments.
The biological samples are cell cultures, which primorily consist of water and have
an average mass of 375 g. These samples are initially ot a temperature of 23°C
but must be frozen and tooled to a temperature of' -20°C for'storage.If Muhammad's
refrigerator uses 25 KJ of work to do this, what is its coefficient of performance?
Transcribed Image Text:Muhammad is Mechanical Engineering for Boeing, and designs a refrigerator that is to be used in the International Space Station (ISS) for Biology experiments. The biological samples are cell cultures, which primorily consist of water and have an average mass of 375 g. These samples are initially ot a temperature of 23°C but must be frozen and tooled to a temperature of' -20°C for'storage.If Muhammad's refrigerator uses 25 KJ of work to do this, what is its coefficient of performance?
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