5-18E Hydrogen is contained in a piston-cylinder device at 14.7 psia and 15 ft'. At this...
2. A piston-cylinder device maintain a constant pressure of 800 kPa while containing 20 kg of saturated water vapor. The system is heated with a resistance heater for 10 min at a current of 8 A at the standard wall voltage of 120 V. In that time, 3.2 kJ of heat is lost through the walls. What is the temperature at the heated state? 3 5-18E Hydrogen is contained in a piston-cylinder device at 14.7 psia and 15 ft. At...
Question 5. (20 points) A gas is contained in a vertical frictionless piston-cylinder device. The piston has a mass of 2.9 kg and cross-sectional area of 40 cm2. A compressed spring above the piston exerts a force of 170 N on the piston. If the atmospheric pressure is 97 kPa, determine the pressure inside the cylinder
A gas is contained in a vertical, frictionless piston-cylinder device. The piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. A compressed spring above the piston exerts a force of 110 N on the piston. If the atmospheric pressure is 95 kPa, determine the pressure inside the cylinder. The pressure inside the cylinder is _______ kPa.
3. A gas is contained in a vertical, frictionless piston-cylinder device (figure 3) above. The piston has a mass of 38 kg and a cross-sectional area of 35 cm2. A compressed spring above the piston exerts a force of 60 N on the piston. Determine the pressure inside the cylinder. (12 marks) a. 138.4 kPa b 147 kPa e. 127.8 kPa d. 131.2 kPae. 125 kPa
* A gas is contained in a vertical, frictionless piston-cylinder device. The piston has a mass of 2 kg and a cross-sectional area of 30 cm2. A spring above the piston is compressed by 2.5 mm and has a spring constant, k, of 38 kN/m. a. If the atmospheric pressure is 1 atm, determine the initial pressure (P1) inside the cylinder. Heat is added to the system until the piston moves an additional 10 mm. b. How much did the...
QUESTION 24 A piston-cylinder device contains 50 kg of water at 250 kPa and 25 degree C. The cross-sectional area of the piston is 0.1 m2. Heat is now transferred to the water, causing part of it to evaporate and expand. When the volume reaches 0.2 m3 the piston reaches a linear spring whose spring constant is 100 kN/m. More heat is transferred to the water until the piston rises 20 cm more. Determine (a) the final pressure and temperature...
Please show all working so I can learn the material. Partial answers I have are W1-2 =117KJ, Wspring/W12 = 0.641 Hopefully that helps you verify your answer a bit. Thank you in advance! SP7: (20 points) Hydrogen gas is contained in a vertical piston-cylinder device at 140 kPa and 0.3 mº. At this state, a linear spring with a spring constant of k=150,000 N/m touches the top of the piston but exerts no force on it because the spring is...
Water is being heated in a frictionless piston cylinder device. During the process, 8 Btu of heat is lost to the surroundings, 50,000 lbf-ft of heat is transferred to the container from a burner, and 7 Btu of work is done by the expansion of the vapor. Determine the change in the internal energy for this process.
A frictionless piston-cylinder device contains 16 lbm of superheated water vapor at 40 psia and 600oF. Steam is now cooled at constant pressure until 70 percent of it, by mass condenses. Determine the work done during this process.
A frictionless cylinder-plunger device contains 0.88 lbm of carbon dioxide initially at 20 psia and 40 ° F. Heat is supplied from a heat source at 740 ° F until the volume occupied by the gas doubles. Determine, in Btu, (a) the quantity of heat supplied, (b) the exergy of the final state, and (c) the reversible useful work associated with the global process if the process is at constant pressure, To = 60 ° F and Po = 14.7...