1. The problem statement, all variables and given/known data Consider the ideal Stirling cycle working between a maximum temperature Th and min temp Tc, and a minimum volume V1 and a maximum volume V2. Suppose that the working gas of the cycle is 0.1 mol of an ideal gas with cv = 5R/2. A) what are the heat flows to the cycle during each leg? Be sure to give the sign. For which legs is the heat flow positive? B) What work is done by the cycle during each leg? 2. Relevant equations W = Integral from Vi to Vf of PdV W = QH-QC 3. The attempt at a solution My attempt at a solution is given in the pdf below. My main problem was identifying some of these quantities without defined values for Vi, Vf, Qh, Qc or mass. I simply assumed some values that were gave in part C, but it was unclear to me if this is what was to be done, or if there was a way to calculate it without these values. For instance, in leg ii of the cycle, no mass is given for know data. How may I then calculate heat? Thanks in advance.