A refrigerator using R-134a as the refrigerant removes 200 kJ of heat from its refrigerated space. This heat is absorbed by a mixture of saturated liquid and saturated vapor that enters the evaporator at a pressure of 175 kPa. The R-134a leaves the evaporator as a saturated vapor. Determine...
a.) ... the entropy change of the R-134a,
b.) ... the entropy change of the refrigerated space assuming its temperature remains constant at -10°C,
c.) ... the entropy change of the universe for this process.
For hints and answers visit:
http://www.LearnThermo.com/T1-tutorial/ch07/lesson-B/pg20.php#P7B3
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