QUESTION 2. 1 mole of an ideal gas, made up of molecules with one atom, is first heated isobarically from a volume of 1 bar and 22.4 dm until its volume doubles. It is then cooled isochorically until its pressure is halved. The isotherm is then restored by reversible compression.

a) Find p, T and v for each case.

b) Show the cycle on the p-v diagram.

c) Interpret the results by finding the changes of w, q, Au and Ah for each path and cycle. (For molecules with one atom, Cp = 5/2, Cv = 3/2.)