A 5-gallon tank used by a refrigerator repair person that initially contains a two-phase mixture of R134a at 20°C develops a small leak at the top. The process is slow enough such that the temperature remains constant at 20°C. If the initial contents are 90% liquid by mass, then determine the heat transfer (kJ) that occurred over the time it took for all the liquid to disappear in the tank (i. e. final state of saturated vapor at 20°C).

When using the ohmmeter function of a digital multimeter, the leads are placed in what position relative to the component being tested? a. parallel b. control c. series d. line

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

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.