Let's say we have a 16 kg air mass. It is warmed from 34 F to...
Let's say we have a 16 kg air mass. It is warmed from 34 F to 88 F under a constant pressure of 710 mb. Determine:
(A) heat absorbed by the air
(B) Work Done
(C) Total change in internal energy.
All work must be shown. Answers must be in standard SI units, in most simple form.
Homework Answers
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4. Let’s say we have a 9 kg air mass. It is warmed from 37F to...
4. Let’s say we have a 9 kg air mass. It is warmed from 37F to 78F under a constant pressure of 605 mb. Determine: (Show all SI Units) (a) Heat absorbed by the air (b) Work done (c) Total change in internal energy
D) One kilogram of dry air is warmed from 20°C to 70 °C under a constant...
D) One kilogram of dry air is warmed from 20°C to 70 °C under a constant pressure of 1 atmosphere. Calculate: (a) the heat absorbed by the gas, (b) the work done, and (c) the change in internal energy. (50 250J, 14350J, 35 900 J).
Number 16 please 15. Air of a mass of .6kg and temperature 110°F is contained within...
Number 16 please
15. Air of a mass of .6kg and temperature 110°F is contained within a piston-cylinder assembly. The air undergoes a quaziequilibrium process where pV=constant. The initial pressure is 3.0 bar, the initial volume is .2m and the final volume is .1m'. Note this is compression and not expansion. Determine the work for the process, in KJ if (10 points) a. n= 0 b. n=1.0 c. n=-.6 16. For the problem above. The change in specific internal energy...
A piston cylinder assembly fitted with a slowly rotating paddle wheel contains 0.13 kg of air...
A piston cylinder assembly fitted with a slowly rotating paddle wheel contains 0.13 kg of air at 300K. The air undergoes a constant pressure process to a final temp of 400K. During the process heat is transfered to the air by Q=12kJ. Assuming the ideal gas model with k=1.4 and negligible changes in kinetic and potential energy for the air, determine the work done by the paddle on the air and the work done by the air to displace the...
part a. The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 110 J of heat. As it...
part a. The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 110 J of heat. As it expands, it does 79 kJ of work. What is the change in internal energy for the system? Express the energy in kilojoules to two significant figures. part b. When fuel is burned in a cylinder equipped with a piston, the volume expands from 0.235 L to 1.350 L against an external pressure of 1.02 atm...
9. A sample of chlorine gas (Cl2) (mass=5.56x10-kg), held at constant pressure (P=2.026x105Pa), is expanded from...
9. A sample of chlorine gas (Cl2) (mass=5.56x10-kg), held at constant pressure (P=2.026x105Pa), is expanded from 40.0cm to 50.0cm. a. Determine the work output for this gas during the compression. b. Calculate the internal energy change for the gas. c. How much heat is absorbed/released by the gas?
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...
5. A rigid tank initially contains 10 kg O2 at 200 kPa and 600 K. Now...
5. A rigid tank initially contains 10 kg O2 at 200 kPa and 600
K. Now O2 is gradually cooled under constant volume until its
temperature reaches 455 K. (18 Points) (a) Calculate the pressure
of O2 at final state. (4 points) (b) Determine the boundary work.
(6 points) (b) Calculate the heat transfer during this process. (8
Points)
let me know if u want the property table
MAE 320 - Thermodynamics + > e ecampus.wvu.edu/bbcswebdav/pid-6846897-dt-content-rid-82617141 1/courses/star50314.202005/MAE320-2020-Summer-HW04.pdf Q4 to Q6...
Now consider a more standard process: an isothermal expansion where the gas expands at ?=273K from...
Now consider a more standard process: an isothermal expansion where the gas expands at ?=273K from ?i=1m3 to ?f=2m3. The initial pressure is ?i=1atm. E. In problem 1 of the week 2 written homework, the area under the PV diagram for this process is given by ??B? ln(V2/V1). Use this to compute the work done on the gas during this process. F. Compute the change in Gibbs free energy of the gas during this isothermal expansion. (Hint: How much heat...
9) An insulated container contains V liters of hot water at temperature T. If M kg...
9) An insulated container contains V liters of hot water at temperature T. If M kg of ice at 0 °C is added to the water, what is the temperature of the system when it reaches equilibrium? Reminder, for water: 1L = 1 kg Cwater = 4190 Cice = 2100 ROK Lboll = 2.26 x 106 steam kg = 2000 .,Lmelt = 3.33 x 105 kg kg kg 10) In an engine, after the fuel is ignited, there is a...
D) One kilogram of dry air is warmed from 20°C to 70 °C under a constant pressure of 1 atmosphere. Calculate: (a) the heat absorbed by the gas, (b) the work done, and (c) the change in internal energy. (50 250J, 14350J, 35 900 J).
Number 16 please
15. Air of a mass of .6kg and temperature 110°F is contained within a piston-cylinder assembly. The air undergoes a quaziequilibrium process where pV=constant. The initial pressure is 3.0 bar, the initial volume is .2m and the final volume is .1m'. Note this is compression and not expansion. Determine the work for the process, in KJ if (10 points) a. n= 0 b. n=1.0 c. n=-.6 16. For the problem above. The change in specific internal energy...
9. A sample of chlorine gas (Cl2) (mass=5.56x10-kg), held at constant pressure (P=2.026x105Pa), is expanded from 40.0cm to 50.0cm. a. Determine the work output for this gas during the compression. b. Calculate the internal energy change for the gas. c. How much heat is absorbed/released by the gas?
5. A rigid tank initially contains 10 kg O2 at 200 kPa and 600
K. Now O2 is gradually cooled under constant volume until its
temperature reaches 455 K. (18 Points) (a) Calculate the pressure
of O2 at final state. (4 points) (b) Determine the boundary work.
(6 points) (b) Calculate the heat transfer during this process. (8
Points)
let me know if u want the property table
MAE 320 - Thermodynamics + > e ecampus.wvu.edu/bbcswebdav/pid-6846897-dt-content-rid-82617141 1/courses/star50314.202005/MAE320-2020-Summer-HW04.pdf Q4 to Q6...
9) An insulated container contains V liters of hot water at temperature T. If M kg of ice at 0 °C is added to the water, what is the temperature of the system when it reaches equilibrium? Reminder, for water: 1L = 1 kg Cwater = 4190 Cice = 2100 ROK Lboll = 2.26 x 106 steam kg = 2000 .,Lmelt = 3.33 x 105 kg kg kg 10) In an engine, after the fuel is ignited, there is a...
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