A certain ideal gas has molar heat capacity at constant volume CV. A sample of this gas initially occupies a volume V0 at pressure p0 and absolute temperature T0. The gas expands isobarically to a volume 2 V0 and then expands further adiabatically to a final volume 4 V0. (a) Draw a pV-diagram for this sequence of processes. (b) Compute the total work done by the gas for this sequence of processes. (c) Find the final temperature of the gas. (d) Find the absolute value of the total heat flow |Q| into or out of the gas for this sequence of processes, and state the direction of heat flow.

Solution 60P Step 1 of 3: For constant pressure, W = pV C v For an adiabatic process of an ideal gas,W = R (p1V 1p V 1 1 and p V 1 p 1 2 2 a)pV diagram