# Physics

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The pressure-volume graph shows an engine cycle where the working substance is an ideal monatomic gas (γ = 5/3). The process A-B is adiabatic. At point A, the pressure is 2.70×105 Pa and the volume is 0.0180 m3. At point B, the volume is 0.0450 m3. During a cycle, calculate (a) the heat added to the gas, (b) the heat removed from the gas (stated as a positive number), and (c) the net work done.

THE GRAPH looks like

P

A

^

C < B

V

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