Example 12.8

 Part (a)
 The first law efficiency n1 is 36.473808
 The second law efficiency n2 is 56.037667
 The work ratio is 0.991498
 Part (b)
 The first law efficiency n1 is 39.399625
 The second law efficiency n2 is 66.441188
 The work ration is 0.993691
 Part (c)
 The first law efficiency n1 is 40.546058
 The second law efficiency n2 is 68.374465
 The work ration is 0.994991
 Part (d)
 The first law efficiency n1 is 43.873239
 The second law efficiency n2 is 42.264519
 The work ration is 0.991498