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In an experiment a Carnot engine is constructed with efficiency of 40%. The high temperature corresponding...

In an experiment a Carnot engine is constructed with efficiency of 40%. The high temperature corresponding to this efficiency is 600K. Next consider a second experiment with another Carnot engine with efficiency of 75%, at the same the low temperature as the first experiment. What is the high temperature of the second experiment?

(a) 800 K (b) 1440 K (c) 4000 K (d) 7500 K

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B) 1440

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