PhysicsLAB AP Free Response Question
2004 Form B - B5

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One mole of an ideal gas is initially at pressure P1, volume V1, and temperature T1, represented by point A on the PV diagram above. The gas is taken around cycle ABCA as shown. Process AB is isobaric, process BC is isochoric, and process CA is isothermal.
 (a) Calculate the temperature T2 at the end of process AB in terms of temperature T1.

 (b) Calculate the pressure P2 at the end of process BC in terms of pressure P1.

 (c) Calculate the net work done on the gas when it is taken from A to B to C. Express your answer in terms of P1 and V1.

 (d) Indicate below all of the processes that result in heat being added to the gas. Justify your answer.

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