2. An ideal gas in a piston/cylinder system undergoes a process in which the specificvolume is increased. In which process is the most work done for the same volumechange?a. Isobaric processb. Isothermal processC.Isentropic process, k = 1.4d. Polytropic process, n = 2e. Cannot tell from this information

Answered: Image /qna-images/answer/eb31c099-6403-4578-833f-3a10e421ae8f.jpg

Answered: 2. An ideal gas in a piston/cylinder…

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

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Air is compressed in a piston-cylinder assembly from p₁ = 10 lb-/in², T₁= 500°R, V₁ = 9 ft³ to a final volume of V₂ = 1 ft³ in a process described by pv¹.30 = constant. Assume ideal gas behavior and neglect kinetic and potential energy effects. Using constant specific heats evaluated at T₁, determine the work and the heat transfer, in Btu. Step 1 Determine the work, in Btu. W12= Save for Later Btu Attempts: 0 of 4 used Step 2 The parts of this question must be completed in order. This part will be available when you complete the part above. Submit Answer
Carbon dioxide (molar mass 44 kg/kmol) expands reversibly in a perfectly thermally insulated cylinder from 3.7 bar, 220 0C to a volume of 0.085 m3. If the initial volume occupied was 0.02 m3, calculate the final pressure in bar to 3 decimal places. Assume nitrogen to be a perfect gas and take cv = 0.63 k J / k g K.
What is v1 and u1?
An oxygen gas R = 0.2598 KJ/kg°k and k = 1.395. If 4 kg of oxygen undergo a reversible non flow constant pressure process from initial volume =1.2 cubic meter and initial pressure = 690 kPa to a state where final temperature = 600°C. From the above statement: What is the initial temperature ? * 786.76°K 797.10 °K 876.50°K 796.77 °K Other: Determine the constant volume specific heat. * 0.6580 KJ/Kg-°K 0.6568 KJ/Kg-°K 0.5897 KJ/Kg- K 0.6577 KJ/Kg-°K
2. A tank contains 1 kg mass gas whose density is 700 kg/m3. The pressure is increased from 1 bar to 3 bar. The approximate specific boundary work of the system is a. Cannot be find since some data is missingb. 285 kJ/kgc. 0 kJ/kgd. 0.285 kJ/kg
A piston-cylinder assembly contains water that undergoes a series of processes. Process 1-->2: Constant-volume heating from p1=5bar and T1=160° to P2=10bar Process 2-->3: Constant-pressure cooling to saturated vapor Process 3-->4: Constant-volume cooling to T4=160°C Process 4-->5: Constant-temperature expansion with Q=815.8 kJ 1- Sketch the processes on Pt, Pyv, and Tv, plots as the following Label the axes PRESSURE, TEMPERATURE and SPECIFIC VvOLUME values; use closed dots to show the states, use solid lines to connect the states, add number and arrows to make clear the states numbers and process directions. 2- Could this be considered a thermodynamic cycle? Why or why not?
please help me with this
2) If an ideal gas undergoes a process where the change in enthalpy (Δh) is 424 kJ/kg, and the change in internal energy (ΔU) is 320 kJ/kg, and the gas has Cv = 0.7452 kJ/kgm-K, find the following: a) Specific heat ratio (k) b) Specific heat for constant pressure (Cp) c) Gas constant (R)
X Your answer is incorrect. A rigid tank whose volume is 4 m³, initially containing air at 1 bar, 295 K, is connected by a valve to a large vessel holding air at 6 bar, 295 K. The valve is opened only as long as required to fill the tank with air to a pressure of 6 bar and a temperature of 350 K. Assuming the ideal gas model for the air, determine the heat transfer between the tank contents and the surroundings, in kJ. Qev = i 88.08 eTextbook and Media Hint Save for Later kJ Attempts: unlimited 4 Submit Answer

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