Carnot cycles in thermodynamics

AI Thread Summary
The discussion revolves around a heat engine operating in a Carnot cycle between temperatures of 75.0°C and 353°C, absorbing 21,000 J of energy from the hot reservoir with a cycle duration of 2.00 seconds. Participants clarify the need to convert Celsius to Kelvin for accurate calculations. The main focus is on determining the efficiency of the Carnot cycle, although the original problem statement lacks clarity on what specific information is being requested. The equations provided include work done (W) and the change in temperature, which are essential for solving the problem. Overall, the conversation emphasizes the importance of understanding the Carnot cycle's efficiency in thermodynamics.
ndavis
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Homework Statement


A heat engine operates in a Carnot cycle between 75.0°C and 353°C. It absorbs 21000 J of energy per cycle from the hot reservoir. The duration of each cycle is 2.00 s.


Homework Equations


W=Qc-Qh, W=-P change in temperature

The Attempt at a Solution


I attempted to solve by converting celsius to kelvins,then finding the percent
 
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You never actually said what the problem asked for. Is it just the efficiency?
 
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