Determine the phase of the following substances and find the values of the unknown quantities. a. R-410a:

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Determine the phase of the following substances and find the values of the unknown quantities.

a. R-410a: T =−20◦C, u=220 kJ/kg, P=?, x=?

b. Ammonia: T =−20◦C, v = 0.35 m3/kg, P = ?, u = ?

c. Water: P=400 kPa, h=2800 kJ/kg, T =?, v=?

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Fundamentals Of Thermodynamics

ISBN: 9781118131992

8th Edition

Authors: Claus Borgnakke, Richard E. Sonntag

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