11. (a) A 4.50 mol sample of an ideal gas is compressed irreversibly and isothermally at 96.22 K from an initial volume of 20.00 L in two steps: Step #1: Pext = 5.00 bar, Step #2: Pexe =
20.00 bar. Determine the value of the total work and heat involved.
(b) [2 marks] Describe in words what happens to the total amount of work if the compression
occurs in three steps.
(0) [2 marks] Assuming the process could be done in one or multiple steps and the process could
be reversible or irreversible, determine the minimum and maximum amount of work that could be
done to complete the compression.