An inventor claims to have invented a heat engine that has thermal efficiency of 85% when operating between two heat reservoirs at 1200K and 300K. An inventor claims to have developed a refrigerator that maintains the refrigerated space at -10°C while operating in a room where the temperature is 24°C and has a COP of 14.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Please evaluate these claims from your thermodynamic perspectives:
i.
An inventor claims to have invented a heat engine that has thermal efficiency
of 85% when operating between two heat reservoirs at 1200K and 300K.
ii.
An inventor claims to have developed a refrigerator that maintains the
refrigerated space at -10°C while operating in a room where the temperature
is 24°C and has a COP of 14.
Transcribed Image Text:Please evaluate these claims from your thermodynamic perspectives: i. An inventor claims to have invented a heat engine that has thermal efficiency of 85% when operating between two heat reservoirs at 1200K and 300K. ii. An inventor claims to have developed a refrigerator that maintains the refrigerated space at -10°C while operating in a room where the temperature is 24°C and has a COP of 14.
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