1. During a polytropic process, 10 lb of an ideal gas, whose R=40 ft.lb/lb.R and c = 0.25 Btu/lb.R, changes state from 20 psia and 40°F to 120 psia and 340°F. Determine (a) n, (b) AU and AH, (c) AS, (d) Q, (e) SpdV, (f)-SVdp. (g) If the process is steady flow during which AK = 0, what is W?. What is AK if W, = 0? (h) What is the work for a nonflow process?

1. During a polytropic process, 10 lb of an ideal gas, whose R=40 ft.lb/lb.R and c = 0.25 Btu/lb.R, changes state from 20 psia and 40°F to 120 psia and 340°F. Determine (a) n, (b) AU and AH, (c) AS, (d) Q, (e) SpdV, (f)-SVdp. (g) If the process is steady flow during which AK = 0, what is W?. What is AK if W, = 0? (h) What is the work for a nonflow process?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

13
Please give me a handwritten solution. Don't use chatgpt.
13
Argon (molar mass 40 kg/kmol) compresses reversibly in an adiabatic system from 5 bar, 25 0C to a volume of 0.2 m3. If the initial volume occupied was 0.9 m3, calculate the work input in MJ to 3 decimal places. Assume nitrogen to be a perfect gas and take cv = 0.3122 k J / k g K.
Calculate the energy requirement to raise the temperature of 1 kg of water from 60 ° C of water to 90 ° C using the following approach; a. Average specific heat usage (Tab A Singh's Book. 4.1) = kJ b. The enthalpy change in the water - vapor saturation table (Tab A Singh's Book. 4.2) = kJ
A piston-cylinder assembly contains ammonia, initially at a temperature of -20°C and a quality of 80%. The ammonia is slowly heated to a final state where the pressure is 6 bar and the temperature is 120°C. While the ammonia is heated, its pressure varies linearly with specific volume. For the ammonia, determine the work and heat transfer, each in kJ/kg.
Calculate the total work done (in J) by 2.19 mol of an ideal gas with a pressure of 4.85 MPa and a volume of 4.1 L that undergoes a process which includes the following steps: Isothermal expansion that doubles the volume Isochorical cool down until the pressure is 0.92 MPa Isothermal compression until the volume goes back to 4.1 L and the pressure is 2.03 MPa. Isochorical heating to return to the initial state
Three-tenths kmol of carbon monoxide (CO) in a piston- cylinder assembly undergoes a process from p1 = 150 kPa, T1 = 300 K to p2 = 500 kPa, T2 = 470 K. For the process, W = -300 kJ. Employing the ideal gas model, determine: (a) the heat transfer, in kJ. (b) the change in entropy, in kJ/K.
A piston–cylinder assembly contains 0.7 lb of air initially at a pressure of 30 lbf/in2 and a temperature of 400oF. The air is heated at constant pressure until its volume is doubled. Assume the ideal gas model with constant specific heat ratio, k = 1.4. Determine the work and heat transfer, in Btu.
B. 0.5 kg of a nitrogen contained within a piston-cylinder undergoes a constant-pressure process at 4 bar beginning at tn 0,72 m/kg. For the nitrogen as the system, the work is =- 84 kJ. Determine the final volume of the nitrogen, in m.
* Your answer is incorrect. Water contained in a piston-cylinder assembly, initially at 300°F, a quality of 80%, and a volume of 6 ft3, is heated at constant temperature to saturated vapor. If the rate of heat transfer is 0.3 Btu/s, determine the time, in min, for this process of the water to occur. Kinetic and potential energy effects are negligible. At = i 5.217 min