Hasil (
Bahasa Indonesia) 1:
[Salinan]Disalin!
7–86 A constant-volume tank contains 5 kg of air at 100
kPa and 327°C. The air is cooled to the surroundings temperature
of 27°C. Assume constant specific heats at 300 K.
(a) Determine the entropy change of the air in the tank during
the process, in kJ/K, (b) determine the net entropy change
of the universe due to this process, in kJ/K, and (c) sketch the
processes for the air in the tank and the surroundings on a
single T-s diagram. Be sure to label the initial and final states
for both processes.
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