A piston–cylinder assembly contains 2 lb of water, initially at 100 lbf/in.2 and 500°F. The water undergoes two processes in series: a constant-pressure process followed by a constant volume process. At the end of the constant-volume process, the temperature is 300°F and the water is a two-phase liquid–vapor mixture with a quality of 60%. Neglect kinetic and potential energy effects.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
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A piston–cylinder assembly contains 2 lb of water, initially at 100 lbf/in.2 and 500°F. The water undergoes two processes in series: a constant-pressure process followed by a constant volume process. At the end of the constant-volume process, the temperature is 300°F and the water is a two-phase liquid–vapor mixture with a quality of 60%. Neglect kinetic and potential energy effects.

 

 

for W12 i got - 62.8 if you need to know that

Part B
X Your answer is incorrect. Try again.
Determine the heat transfer for the constant-pressure process, in Btu.
-815.8
Q12
Btu
the tolerance is +/-5%
Click if you would like to Show Work for this question: Open Show Work
Transcribed Image Text:Part B X Your answer is incorrect. Try again. Determine the heat transfer for the constant-pressure process, in Btu. -815.8 Q12 Btu the tolerance is +/-5% Click if you would like to Show Work for this question: Open Show Work
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