Physics, 05.07.2021 20:10 tbowlby7620
. Refrigerant-134a enters the coils of the evaporator of a refrigeration system as a saturated liquid–
vapor mixture at a pressure of 160 kPa. The refrigerant absorbs 180 kJ of heat from the cooled
space, which is maintained at -5°C, and leaves as saturated vapor at the same pressure. Determine
(a) the entropy change of the refrigerant, (b) the entropy change of the cooled space, and (c) the
total entropy change for this process.
Answers: 1
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Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.
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. Refrigerant-134a enters the coils of the evaporator of a refrigeration system as a saturated liqui...
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