! Required information During the isothermal heat addition process of a Carnot cycle, 1100 kJ of heat is added to the working fluid from a source at \( 400^{\circ} \mathrm{C} \). Determine the entropy change of the working fluid. The entropy change of the working fluid is \( \mathrm{kJ} / \mathrm{K} \). Determine the entropy change of the source. The entropy change of the source is Determine the total entropy change for the process. The total entropy change for the process is \( \mathrm{kJ} / \mathrm{K} \).