[4] For an ideal gas, internal energy u is a function of T'only, i.e., I (a) First, derive that ou, = T- Ju P Ju = 0. 10 points (Hint: You have to use one of the Maxwell relations. You don't need to derive the Maxwell relation. Just use it.) Ju (b) Using the ideal gas law in =T - T T-| P, show that 2| = 0 av T 5 points