(b) Apply the result of part (a) to 1.00 kg of water initially at a temperature of 373 K as the heat source for the engine and Tc = 273 K. How much total mechanical work can be performed by the engine until it stops?
(c) Repeat part (b) for 200 kg of water at 323 K.
(d) Compare the amount of work that can be obtained from the energy in the water of Example 20.10 before and after it is mixed. Discuss whether your result shows that energy has become less available.