MATH 246 Quiz: Quiz 11 No Solutions Spring 2011
14 Mar 2019
School
Department
Course
Professor
Document Summary
Fall, 2003: a piston-cylinder device contains 50 kg of water at 150 kpa and 250c. 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: the final pressure and temperature, the work done during the process. H20 m=50 kg: air enters a compressor operating at a steady state at a pressure of 100 kpa, a temperature of 2900k, and a velocity of 6 m/sec through an inlet with an area of 0. 1 m2. At the exit, the pressure is 700 kpa, the temperature is 4500k, and the velocity is 2 m/sec. Heat transfer from the compressor to its surroundings occurs at a rate of 3 kj/sec.
