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A Carnot engine is set up to produce a c...

A Carnot engine is set up to produce a certain work W per cycle. In each cycle, energy in the form of heat `Q_H `is transferred to the working substance of the engine from the higher-temperature thermal reservoir, which is at an adjustable temperature `T_H`. The lower-temperature thermal reservoir is maintained at temperature `T_L = 250 K.` Figure 21-37 gives `Q_H `for a range of `T_H ` The scale of the vertical axis is set by `Q_Hs ` = 12.0 kJ. If `T_H ` is set at 550 K, what is `Q_H `?

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` 3.38 KJ ~~ 3.4 KJ`
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