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refrigarent-134a enters the expansion valve of a refrigeration system at 1MPa as a satuarted liquid and...

refrigarent-134a enters the expansion valve of a refrigeration system at 1MPa as a satuarted liquid and leaves at 100kPa. determine the temperature change across the valve

a.0
b.65.74C
c.640C
d.-26.37C

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