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A mass-loaded piston/cylinder containing air is at 45

Fundamentals of Thermodynamcs | 8th Edition | ISBN: 9781118131992 | Authors: Claus Borgnakke, Richard E. Sonntag ISBN: 9781118131992 58

Solution for problem 211EUP Chapter 4

Fundamentals of Thermodynamcs | 8th Edition

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

Fundamentals of Thermodynamcs | 8th Edition

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Problem 211EUP

Problem 211EUP

A mass-loaded piston/cylinder containing air is at 45 lbf/in.2, 60 F with a volume of 9 ft3, while at the stops V = 36 ft3. An air line, 75 lbf./in.2, 1100 R is connected by a valve, as shown in Fig. P4.154 The valve is then opened until a final inside pressure of 60 lbf/in.2 is reached, at which point T = 630 R. Find the air mass that enters, work done, and heat transfer.

FIGURE P4.154

Step-by-Step Solution:
Step 1 of 3

Weather Climate and Society Weather Variables:  Barometric pressure  Air temperature  Dew point temperature  Humidity  Wind Direction  Precipitation  Cloud Cover Barometric Pressure:  Gravitational effect on mass of air  Expressed as millibars (mb, or 1kg/cm^2)  Measured using barometer  Standard sea level pressure is 1013.2 millibars or kilopascal (kPa)  Higher elevation >> less air on top o Denver is a Mile higher than sea level Weather Station Model: Air Temperature Air temperature Is expressed as Kelvin

Step 2 of 3

Chapter 4, Problem 211EUP is Solved
Step 3 of 3

Textbook: Fundamentals of Thermodynamcs
Edition: 8
Author: Claus Borgnakke, Richard E. Sonntag
ISBN: 9781118131992

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A mass-loaded piston/cylinder containing air is at 45