#1 | Entropy Concept | QnA series
This question has been asked by a viewer which is from the concept of entropy and the problem is like this:
"1 kg of air is allowed to expand reversibly in a cylinder behind a piston in such a way that the temperature remains constant at 260°C while the volume is doubled. The piston is then moved in, and heat is rejected by the air reversibly at constant pressure until the volume is the same as it was initially. Calculate the net heat flow and the overall change of entropy. Sketch the processes on a T-s diagram."
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