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ppk ppk
wrote...
Valued Member
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Posts: 3561
12 years ago
A heat engine operating at maximum efficiency has an efficiency of 25%. The temperature of the cold reservoir is 300 K. What is the temperature of the hot reservoir?
A) 350 K
B) 375 K
C) 400 K
D) 450 K
E) 500 K
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duddyduddy
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Posts: 7825
8 years ago
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ppk Author
wrote...

12 years ago
this is exactly what I needed
wrote...

Yesterday
Correct Slight Smile TY
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2 hours ago
Thank you, thank you, thank you!
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