PhysicsLAB: 2004 Form B

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.