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posted by  chemlady on 7/17/2008 11:20:53 AM  |  status: Live  

pls help......will rate lifesaver

Course Textbook Chapter Problem
Thermodynamics Fundamentals of Engineering Thermodynamics (5th) by Moran, Shapiro 3 N/A
Question Details:
Problem 3.94
Determine the pressure, in lbf/in.2, of ethane (C2H6) at 115°F and a specific volume of 0.4 ft3/lb.

lbf/in.2
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posted by martine on 7/17/2008 9:33:57 PM  |  status: Live
Asker's Rating: Helpful   
chemlady's comment:
"thanks"
Response Details:
ideal gas equation
p=pressure
v=specific volume=0.4
R=ideal gas constant
T=tem=115 F=319.26K
M=molecular mass=24+6=30
                       
                        p=285.47 lbf/ft^2
                         p=1.982  lbf/in^2
                          
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