Assume you have the following jobs to execute with one processor: give the average wait time for this set of processes using the following algorithms. specify the arbitration rule used for each algorithm, if needed. (a) first in first out (b) shortest job next (non-preemptive) (c) shortest remaining time next (pre-emptive) (d) round robin, with a quantum of 7 (e) round robin, with a quantum of 5 plus context switch time of 1

Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.