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anonymous
 one year ago
A heat engine has a hot reservoir of 680°C and a cold reservoir of 220°C. What is the efficiency of the engine
anonymous
 one year ago
A heat engine has a hot reservoir of 680°C and a cold reservoir of 220°C. What is the efficiency of the engine

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Hayleymeyer
 one year ago
Best ResponseYou've already chosen the best response.0220C = 428F 680C= 1257 F

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0a 58.3% b 75.9% c 62.3% d 72.1% e 67.6%

Australopithecus
 one year ago
Best ResponseYou've already chosen the best response.0\[%\ efficiency\ = (1\frac{(T_{cold}}{T_{hot}})*100\]

Australopithecus
 one year ago
Best ResponseYou've already chosen the best response.0This is the formula you need \[efficiency\ percent = (1  \frac{T_{cold}}{T_{hot}})*100\]

Australopithecus
 one year ago
Best ResponseYou've already chosen the best response.0Where Temperature is in kelvin, so add 273 to each of your temperatures.
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