The data listed below are claimed for power cycles operating between hot and cold reservoirs at 1000 K and 400 K, respectively. For each case determine whether such a cycle is in keeping with the first and second laws of thermodynamics. a. QH=300kJ, Wcycle =160kJ, QC=140kJ
b. QH=300kJ, Wcycle=180kJ, QC=120kJ
c. QH=300kJ, Wcycle=170kJ, QC=140kJ
d. QH=300kJ, Wcycle=200kJ, QC=100kJ .

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.