A Carnot engine whose sink is at \(300~\text{K}\) has an efficiency of \(40\%.\) By how much should the temperature of the source be increased to increase its efficiency by \(50\%\) of its original efficiency?
1. \(275~\text{K}\) 2. \(325~\text{K}\)
3. \(250~\text{K}\) 4. \(380~\text{K}\)
Subtopic:  Carnot Engine |
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