Question

Oxygen gas is contained in a piston cylinder assembly at an initial pressure of 1000 kPa...

Oxygen gas is contained in a piston cylinder assembly at an initial pressure of 1000 kPa and expands from 0.2 m3 to 1.0 m3 by a process where PV = constant. The gas has an internal energy change of -200 kJ. Calculate the work (kJ) and the heat transfer (kJ) done during the process.

Engineering   Mechanical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Given;

Work done is given as;

...(Answer)

By first law of thermodynamics;

...(Answer)

0 0
Know the answer?
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
Similar Questions
A piston-cylinder assembly containing 3 kg of an ideal gas undergoes a constant pressure process from...
A piston-cylinder assembly containing 3 kg of an ideal gas undergoes a constant pressure process from an initial volume of 48 m3 to a final volume of 30 m3 . During the process, the piston supplies 1.2 MJ of work to the gas. The gas has a constant specific heat at constant volume of 1.80 kJ/(kg∙K) and a specific gas constant of 1.48 kJ/(kg∙K). Neglect potential and kinetic energy changes. a. Determine the initial specific volume of the gas in...
One gram-mole of ideal gas is contained in a piston-cylinder assembly. Cp=(7/2)R, Cv=(5/2)R. The gas expands...
One gram-mole of ideal gas is contained in a piston-cylinder assembly. Cp=(7/2)R, Cv=(5/2)R. The gas expands from 3 to 1 atm. Heat of 1000J is transferred to the gas during the process. External pressure maintains at 1 atm throughout. Initial temperature of the gas is 300K. Find work and internal energy change.
A gas contained in a vertical piston–cylinder assembly by a piston with a face area of...
A gas contained in a vertical piston–cylinder assembly by a piston with a face area of 40 in2 and weight of 100 lbf. The atmosphere exerts a pressure of 14.7 lbf/in2 on top of the piston. A paddle wheel transfers 3 Btu of energy to the gas during a process in which the elevation of the piston increases slowly by 4 ft. The piston and cylinder are poor thermal conductors, and friction between the piston and cylinder can be neglected....
Atmospheric pressure is 100 kPa in a system of cylinders and pistons.The mass of the piston...
Atmospheric pressure is 100 kPa in a system of cylinders and pistons.The mass of the piston is 4 kg and the area of ​​the piston is 4.0 cm2. The following process takes place by external heat transfer. (Gravity acceleration is 10 m / s2). 1. Calculate the pressure inside the cylinder in kPa. 2. The cylinder contains 0.1 kg of water vapor, and the temperature of the water vapor is 150oC. Find the volume and internal energy of water vapor...
Water, initially (state 1) a saturated liquid at 1100C, is contained in a piston-cylinder assembly. The...
Water, initially (state 1) a saturated liquid at 1100C, is contained in a piston-cylinder assembly. The water undergoes a process to the corresponding saturated vapor (state 2), during which the piston moves freely in the cylinder. If the change of state is brought about by heating the water as it undergoes an internally reversible process at constant pressure and temperature, determine (a) heat transfer using first law of thermodynamics in kJ/kg and (b) heat transfer using second law of thermodynamics...
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 pv1.2 = 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 = 300 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. Δu⁢=
A 0.2 m3 piston/cylinder contains air at 400 K and 400 kPa and receives heat from...
A 0.2 m3 piston/cylinder contains air at 400 K and 400 kPa and receives heat from a constant temperature heat source at 1300 K.   The piston expands at constant pressure to a volume of 0.6 m3. Determine the change of availability of the system.
A mass of one kg of water within a piston–cylinder assembly undergoes a constant-pressure process from...
A mass of one kg of water within a piston–cylinder assembly undergoes a constant-pressure process from saturated vapor at 500 kPa to a temperature of 260°C. Kinetic and potential energy effects are negligible. For the water: a) Evaluate the work, in kJ, b) If the work is 30 kJ, evaluate the heat transfer, in kJ, c) If the heat transfer is negligible, evaluate the entropy production in kJ/K d) Determine if the process is reversible, irreversible, or impossible.
Carbon dioxide (CO2) is compressed in a piston–cylinder assembly from p1 = 0.7 bar, T1 =...
Carbon dioxide (CO2) is compressed in a piston–cylinder assembly from p1 = 0.7 bar, T1 = 280 K to p2 = 14 bar. The initial volume is 0.2 m3. The process is described by pV1.25 = constant. Assuming ideal gas behavior and neglecting kinetic and potential energy effects, determine the work and heat transfer for the process, each in kJ, using constant specific heats evaluated at 300 K, and data from Table A-23.
A.) A gas confined by a piston expands isobarically at 30 kPa. When 24,000 joules of...
A.) A gas confined by a piston expands isobarically at 30 kPa. When 24,000 joules of heat is absorbed by the system, its volume increases from 0.14 m3 to 0.4 m3. What work is done on the system and what is the change in internal energy? Work Done by the System = Joules Internal Energy Change = Joules B.) The volume of a gas decreases from 7 to 4 liters under a constant pressure of one atmosphere. Is the work...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT