Nitrogen at an initial state of 300 K, 150 kPa, and 0.35 m3 is compressed slowly in an isothermal process to a final pressure of 800 kPa. Determine the work done during this process. The work done during this process is kJ

The higher the astm grain size number, the finer the gran is. a)-true b)-false

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.

Wiy doeres rere okhn a pump whon working betwon the same pressure range?