subject
Engineering, 28.02.2020 03:58 nateqqj

At point A in a Carnot cycle, 2.34 mol of a monatomic ideal gas has a pressure of 1 400 kPa, a volume of 10.0 L, and a temperature of 720 K. The gas expands isothermally to point B and then expands adiabatically to point C, where its volume is 24.0 L. An isothermal compression brings it to point D, where its volume is 15.0 L. An adiabatic process returns the gas to point A.

a. Determine all the unknown pressures, volumes, and temperatures as you f ill in the following table:

P V T
A 1400Kpa 10.0L 720K
B
C 24.0L
D 15.0L

b. Find the energy added by heat, the work done by the engine, and the change in internal energy for each of the steps A→ B, B→ C, C→ D, and D → A
c. Calculate the efficiency W net/lQkl.
d. Show that the efficiency is equal to 1 - Tc/TA, the Carnot efficiency.

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.
Answers: 2
question
Engineering, 04.07.2019 18:10
Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1
Answers: 1
question
Engineering, 04.07.2019 18:20
Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]
Answers: 1
question
Engineering, 06.07.2019 04:10
Aheat pump using refrigerant-134a heats a house by using underground water at 8°c as the heat source. the house is losing heat at a rate of 60,000 kj/h. the refrigerant enters the compressor at 280 kpa and 0°c, and it leaves at 1 mpa and 60°c. the refrigerant exits the condenser at 30°c. determine: (a) the power input to the heat pump, (b) the rate of heat absorption from the water, and (c) the increase in electric power input if an electric resistance heater is used instead of a heat pump
Answers: 2
You know the right answer?
At point A in a Carnot cycle, 2.34 mol of a monatomic ideal gas has a pressure of 1 400 kPa, a volum...
Questions
question
Mathematics, 28.10.2020 23:30
question
Mathematics, 28.10.2020 23:30
question
Mathematics, 28.10.2020 23:30
question
Physics, 28.10.2020 23:30
question
Arts, 28.10.2020 23:30
question
Mathematics, 28.10.2020 23:30
Questions on the website: 13722367