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An engine working between the temperatures TH = 145ºC and TC = 30 ºC works at...

An engine working between the temperatures TH = 145ºC and TC = 30 ºC works at the maximum efficiency possible.  It must do the work of lifting 250kg a height of 165m.  Determine the work done, the efficiency of the engine and QH and QC.  Remember that QH = QC + W.

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