pts per question) 1. A 2 m piston cylinder device contains nitroen gas at 200 kPa...
A frictionless piston-cylinder device contains 0.2 kg of air at 100 kPa and 27°C. The air is now compressed slowly according to the relation P Vk = constant, where k = 1.4, until it reaches a final temperature of 77°C. Sketch the P-V diagram of the process with respect to the relevant constant temperature lines, and indicate the work done on this diagram. Using the basic definition of boundary work done determine the boundary work done during the process [-7.18...
Consider a piston-cylinder device (system) that contains 0.06 m3 of air at 300 kPa and 125 ̊C. (a) If the volume of air in the device increases to 0.15 m3 while the pressure remains constant, determine the work done by the system during the process. (b) If as a result of heat transfer to the surrounding, the pressure and temperature in the device drop to 240 kPa and 55 ̊C, respectively, and the piston is held such that the volume...
A piston cylinder device contains air with a volume of 0.05 m3 at 25oC and 100 kPa pressure. The gas is now compressed to a final temperature of 95oC at 250 kPa. This compression is polytropic and follows PVn=constant. a. Determine how much boundary work was added to the gas [in kJ] b. How much heat was added or removed from this system during this process? [in kJ]
a piston -cylinder device contains 2.5 Kg of carbon dioxide (CO2 ) initially at 100 KPa and 300o C. The carbon dioxide is then compressed to 200 kPa following a process of Pv1.25 =constant. Determine (A) the boundary worked needed for the process (B) The temperature after compression . use Ideal gas state and Pressure in absolute pressure ; R=0.1889 KJ/Kg-K
The following problems summarize this section: Problem 3.4 - A frictionless piston-cylinder device contains 0.2 kg of air at 100 kPa and 27°C. The air is now compressed slowly according to the relation P VK = constant, where k = 1.4. until it reaches a final temperature of 77°C. . a) Sketch the P-V diagram of the process with respect to the relevant constant temperature lines, and indicate the work done on this diagram. • b) Using the basic definition...
A piston-cylinder assembly initially contains 0.8 kg of air at 100 kPa and 300 K. It is then compressed in a polytropic process PV3 = C to half the original volume. Assuming the ideal gas model for air and specific heat ratio is constant, k=1.4, determine (a) the final temperature, (b) work and heat transfer, each in kJ. R= 0.287 kJ/kg K. W, 82
Piston Cylinder device contains a 0.32 m3 of air at an initial condition of 300 KPa, 500 K and is compressed isothermally to a final pressure of 700 kPa. For air, R= 287 J/Kg.K 1. Determine the work done during the process. 2. Determine if the work is done on the system or done by the system. 3. Plot the PV diagram showing all the states and numbers on it.
Piston Cylinder device contains a 0.32 m3 of air at an initial condition of 300 kPa, 500 K and is compressed isothermally to a final pressure of 700 kPa. For air, R= 287 J/Kg.K 1. Determine the work done during the process. 2. Determine if the work is done on the system or done by the system. 3. Plot the PV diagram showing all the states and numbers on it.
Air in a piston-cylinder device is compressed from 27°C and 100 kPa to 900 kPa by following a process with Pv14-const. If air is considered as ideal gas, please determine: (1) The air temperature after compression, (2) The heat transfer into or out of the system
Piston Cylinder device contains a 0.32 m3 of air at an initial condition of 300 kPa, 500 K and is compressed isothermally to a final pressure of 700 kPa. For air, R=287 J/Kg.K 1. Determine the work done during the process. 12% 2. Determine if the work is done on the system or done by the system. 4% 3. Plot the PV diagram showing all the states and numbers on it. 4% oras