A 35-ft3 rigid tank has propane at 15 psia, 540 R and is

Chapter 2, Problem 163EUP

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QUESTION:

Problem 163EUP

A 35-ft3 rigid tank has propane at 15 psia, 540 R and is connected by a valve to another tank of 20 ft3 with propane at 40 psia, 720 R. The valve is opened and the two tanks come to a uniform state at 600 R. What is the final pressure?

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QUESTION:

Problem 163EUP

A 35-ft3 rigid tank has propane at 15 psia, 540 R and is connected by a valve to another tank of 20 ft3 with propane at 40 psia, 720 R. The valve is opened and the two tanks come to a uniform state at 600 R. What is the final pressure?

ANSWER:

Solution 163 EUP

Step 1 of 3

We have to find the final pressure of the propane.

The final pressure of the propane can be found using ideal gas equation.

where,

total mass of the propane in

       both the tanks in lbm

gas constant for propane

       = 35.04 ft-lbf/lbmR

600 R

total volume of the propane

       in both the tanks in ft3

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