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Engineering and Tech / Fundamentals of Thermodynamcs 8 / Chapter 3 / Problem 81HP

Fundamentals of Thermodynamcs | 8th Edition | ISBN: 9781118131992 | Authors: Claus Borgnakke, Richard E. Sonntag

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Answer: Determine the phase of the following substances

Chapter 3, Problem 81HP

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QUESTION:

Problem 81HP

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

a. Water: P=500 kPa, u=2850 kJ/kg, T =?, v=?

b. R-134a: T = −10°C, v = 0.08 m3/kg, P = ?, u = ?

c. Ammonia: T = −20°C, u = 1000 kJ/kg P = ?, x = ?

Questions & Answers

QUESTION:

Problem 81HP

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

a. Water: P=500 kPa, u=2850 kJ/kg, T =?, v=?

b. R-134a: T = −10°C, v = 0.08 m3/kg, P = ?, u = ?

c. Ammonia: T = −20°C, u = 1000 kJ/kg P = ?, x = ?

ANSWER:

Solution 81 HP

Step 1 of 4

To find the phase and the unknown quantities of the given substances.

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