Step by step please

C) FNT 3: Work, change in internal energy, and heat for this process (for n = 3 moles): W = -1150 J AU = 997 J Q = 2147 J 1) Show how to find the magnitude and sign of the work for this process. 2) Show how to find the change in internal energy for this process. 3) Show how to find the heat transferred in this process. Outline an explanation for why the heat is usually the last thing to determine when using a PV diagram. 4) Could you answer these questions if the temperatures were not provided? Why or why not