Question

A cylinder-piston sistem contains CO2. The sistem experiments an initial expansion where P1 = 20 lbf...

A cylinder-piston sistem contains CO2. The sistem experiments an initial expansion where P1 = 20 lbf / in2 and V1 = 0.50 ft3 till the final state where P2= 5 lbf / in2 and V2= 2.50 ft3. The relation between pressure and volumen during the process is P = A + BV, where A and B are constants.

a) For the CO2, evaluate the work done on ft / lbf and Btu

b) Calculate the values of A and B in lbf / in2 and (lbf / in2 ) / ft3 respectively

If you make a conversion write it down please!!

The answers should be: a) 3600 ft / lbf or 4.63 Btu and b) A= 23.75 lbf / in2 and B= -7.5 (lbf / in2 ) / ft3

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
A cylinder-piston sistem contains CO2. The sistem experiments an initial expansion where P1 = 20 lbf...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • A gas undergoes a process in a piston–cylinder assembly during which the pressure-specific volume relation is...

    A gas undergoes a process in a piston–cylinder assembly during which the pressure-specific volume relation is pv1.1 = constant. The mass of the gas is 0.4 lb and the following data are known: p1 = 160 lbf/in.2, V1 = 1 ft3, and p2 = 390 lbf/in.2 During the process, heat transfer from the gas is 2.1 Btu. Kinetic and potential energy effects are negligible. Determine the change in specific internal energy of the gas, in Btu/lb.

  • A piston-cylinder assembly contains 0.7 lb of propane. The propane expands from an initial state where...

    A piston-cylinder assembly contains 0.7 lb of propane. The propane expands from an initial state where p1 = 60 lbf/in.and T1 = 90°F to a final state where P2 = 10 lbf/in. During the process, the pressure and specific volume are related by pr2 = constant. Determine the energy transfer by work, in Btu. W = Btu the tolerance is +/-2%

  • Argon is contained within a piston-cylinder assembly with initial state of V1 25 ft3 significant change...

    Argon is contained within a piston-cylinder assembly with initial state of V1 25 ft3 significant change in kinetic or potential energy, undergoes a thermodynamic cycle consisting of three processes as follows: Process 1-2: Adiabatic expansion with P aV + c, where c- 15 in Hg, a constant, and V2 40 ft3 p1 70 in Hg, and with no Process 2-3: Compression with pV-constant, U2 U3. Process 3-1: Constant-volume with AU-0.5 BTU 1. For process 1-2, find the constant a (with...

  • A piston-cylinder assembly contains air, initially at 60 lbf/in2, 900°R, and a volume of 0.05 ft3....

    A piston-cylinder assembly contains air, initially at 60 lbf/in2, 900°R, and a volume of 0.05 ft3. The air undergoes a process to a state where the final volume is 0.10 ft3. The process is polytropic with n=1.4. Assuming ideal gas behavior for the air: a. Draw the process in the p-V diagram and write the engineering model. a. Clearly label the states and indicate the direction of the process. b. Determine the mass of the air, in lb

  • A gas contained within a piston-cylinder assembly undergoes two processes

    A gas contained within a piston-cylinder assembly undergoes two processes, A and B, between the same end states, 1 and 2, where p1=10 bar, V1= 0.1 m3, U1=400 kJ and p2=1 bar, V2=1.0 m3, U2=200 kJ: Process A. Process from 1 to 2 during which the pressure-volume relation is p.V = constant. Process B: Constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to state 2 Kinetic and potential energy effects can be ignored. For...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT