Arigid vessel with a volume of 2.5 m^3 contains 10 kg of water at an initial temperature of 120°c. a. determine the initial pressure of the water. b. calculate the work required to increase/decrease the pressure to 800 kpa c. what is the heat transfer required to increase/decrease the pressure to 800 kpa? d. show the process on p-v and t-v diagrams.

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.