ZuoTi.Pro
Question

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.

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
A gas undergoes a process in a piston–cylinder assembly during which the pressure-specific volume relation is...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

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 from state 1, where p1 = 60 lbf/in.2, v1 = 6.0...

    A gas undergoes a process from state 1, where p1 = 60 lbf/in.2, v1 = 6.0 ft3/lb, to state 2 where p2 = 85.1 lbf/in.2, according to pv1.3 = constant. The relationship between pressure, specific volume, and internal energy is u = (0.2651)pv - 95.436 where p is in lbf/in.2, v is in ft3/lb, and u is in Btu/lb. The mass of gas is 10 lb. Neglecting kinetic and potential energy effects, determine the heat transfer, in Btu. Entry field...

  • Ammonia is contained in a piston-cylinder assembly. The ammonia undergoes a reversible, isobaric process from an...

    Ammonia is contained in a piston-cylinder assembly. The ammonia undergoes a reversible, isobaric process from an initial pressure of 30 lbf/in2 and volume of 4 ft3/lb to a final temperature of 70° F. The mass of ammonia is 0.35 lb. Determine the amount of work done on the ammonia in Btu, the amount of heat transfer to the ammonia in Btu, and the temperature at which the heat transfer occurs in °F. Assume that the heat transfer occurs at a...

  • Problem 2 (25 points) gas expands in a piston-cylinder assembly from p1 8 bar, V 0.02...

    Problem 2 (25 points) gas expands in a piston-cylinder assembly from p1 8 bar, V 0.02 m to p2-2 bar. The relation between pressure and volume during the gas expansion process is p constant. The mass of the gas is 0.25 kg. If the specific internal energy of the gas decreases by 40 kJ/kg during the process, determine the heat transfer, in kJ Kinetic and potential energy effects are negligible.

  • 4. A mass of 5 kg undergoes a process during which there is heat transfer from...

    4. A mass of 5 kg undergoes a process during which there is heat transfer from the mass at a rate of 6 kJ per kg, an elevation decrease of 34 m, and an increase in velocity from 13 m/s to 34 m/s. The specific internal energy decreases by 6 kJ/kg and the acceleration of gravity is constant at 9.7 m/s2. Determine the work for the process, in kJ. 5. A gas is compressed in a piston–cylinder assembly from p1...

  • 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...

  • 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%

  • Ammonia in a piston-cylinder assembly undergoes two processes in series. At the initial state, pi- 120...

    Ammonia in a piston-cylinder assembly undergoes two processes in series. At the initial state, pi- 120 lbfin? and the quality is 100%. Process 1-2 occurs at constant volume until the temperature is 100°F. The second process, from state 2 to state 3, occurs at constant temperature, with Q23-98.9 Btu, until the quality is again 100%. Kinetic and potential energy effects are negligible. For 2.2 lb of ammonia, determine (a) the heat transfer for Process 1-2, in Btu, (b) the work...

  • three kg of gas in a piston-cylinder assembly undergo a process during the relationship between pressure...

    three kg of gas in a piston-cylinder assembly undergo a process during the relationship between pressure and specific volume is pv^0.5=constant. the process begins with p1=250kPa and V1=1.5m^3 and ends with p2=100kPa. determine the final specific volume,in m^3/kg. Plot the process on a graph of pressure versus specific volume.

  • Problem # 2 135 Points Polytropic Processes A piston-cylinder undergoes a constant pressure expansion process followed...

    Problem # 2 135 Points Polytropic Processes A piston-cylinder undergoes a constant pressure expansion process followed by an adiabatic compression. The adiabatic compression can be modeled as a polytropic process PVn constant with a volume exponent n 1.4. At state 1 the pressure of the system is P1 60 psi, the volume is Vi 8.868 ft3 and the internal energy U 1630.6 BTU. The work output during the constant pressure process is W2-75.2 BTU and the heat transfer input for...

  • Can someone help me with this thermodynamics problem? A piston‐cylinder assembly contains 1.5 lb of air...

    Can someone help me with this thermodynamics problem? A piston‐cylinder assembly contains 1.5 lb of air initially at 80°F and 1 atm. The air undergoes a constant‐pressure process during which the rate of heat transfer from the air is 4 Btu/h resulting in a final air temperature of 40°F. Assuming ideal gas behavior with k = 1.4 and negligible effects of kinetic and potential energy for the air, determine the time, in minutes, associated with the process.

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