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A flask contains 90.7 moles of a monatomic ideal gas at pressure 5.64 atm and volume...

A flask contains 90.7 moles of a monatomic ideal gas at pressure 5.64 atm and volume 40.1 liters (point A on the graph. Now, the gas undergoes a cycle of three steps:

- First there is an isothermal expansion to pressure 3.79 atm (point B on the graph).

- Next, there is an isochoric process in which the pressure is raised to P1 (point C on the graph).

- Finally, there is an isobaric compression back to the original state (point A on the graph).

Find the total work done, in kJ, over the entire cycle (from A back to A). A positive value means work was done by the gas; a negative value means work is done on the gas.

Why is this a poor sort of engine?

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