A 10-kg mass of r-134a at 12 mpa and 70 c is cooled at

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A 10-kg mass of R-134a at 1.2 MPA and 70 C is cooled at constant pressure until it reaches a temperature of 20 C. Determine:

a) The states at points 1 and 2. Show the process on a T-v diagram with respect to the saturation line.

b) The change in total internal energy in KJ.

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A 10-kg mass of r-134a at 12 mpa and 70 c is cooled at : a 10-kg mass of r-134a at 1.2 mpa and 70 c is cooled at constant pressure until it reaches a temperature of 20 c.

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